부산대학교 도서관

Parciak, T; Geys, L; Helme, A; van, der Mei I; Hillert, J; Schmidt, H; Salter, A; Zakaria, M; Middleton, R; Stahmann, A

MULTIPLE SCLEROSIS JOURNAL. 30(3):396-418

Peeters, LM; Parciak, T; Walton, C; Geys, L; Moreau, Y; De, Brouwer E; Raimondi, D; Pirmani, A; Kalincik, T; Edan, G

MULTIPLE SCLEROSIS JOURNAL. 26(10):1157-1162

Simpson-Yap, S; Pirmani, A; Kalincik, T; De, Brouwer E; Geys, L; Parciak, T; Helme, A; Rijke, N; Hillert, JA; Moreau, Y

NEUROLOGY-NEUROIMMUNOLOGY & NEUROINFLAMMATION. 9(6)

Ellenberger, D; Parciak, T; Brola, W; Hillert, J; Middleton, R; Stahmann, A; Thalheim, C; Flachenecker, P

MULTIPLE SCLEROSIS JOURNAL - EXPERIMENTAL, TRANSLATIONAL AND CLINICAL. 8(2)

Simpson-Yap, S.; Pirmani, A.; De Brouwer, E.; Geys, L.; Parciak, T.; Helme, A.; Rijke, N.; Kalincik, T.; Hillert, J.; Moreau, Y.; Edan, G.; Spelman, T.; McBurney, R.; Schmidt, H.; Bergmann, A.; Stahmann, A.; Salter, A.; Bebo, B.; van der Walt, A.; Butzkueven, H.; Rojas, J. I.; van der Mei, I.; Sciascia do Olival, G.; Magyari, M.; Alonso, R.; Nicholas, R.; Chertcoff, A.; Zabalza, A.; Arrambide, G.; Sharmin, S.; Descamps, A.; Costers, L.; Dobson, R.; Miller, A.; Rodrigues, P.; Comi, G.; Peeters, L.

Roeper, A. -L.; Ellenberger, D.; Frahm, N.; Meyer, C.; Parciak, T.; Peters, M.; Temmes, H.; Stahmann, A.

Parciak, T.; Bekkers, L.; De Brouwer, E.; Neven, F.; Peeters, L. M.

Tuemler, K; Parciak, T; Preusse, M; Stahmann, A

67. Jahrestagung der Deutschen Gesellschaft für Medizinische Informatik, Biometrie und Epidemiologie e. V. (GMDS), 13. Jahreskongress der Technologie-und Methodenplattform für die vernetzte medizinische Forschung e.V. (TMF); 20220821-20220825; sine loco [digital]; DOCAbstr. 180 /20220819/

Parciak, Ewa C. ; Dahiya, Ankur T. ; AlRumaih, Hamad S. ; Kattadiyil, Mathew T. ; Baba, Nadim Z. ; Goodacre, Charles J.

In The Journal of Prosthetic Dentistry October 2017 118(4):504-510

Simpson-Yap, S.; de Brouwer, E.; Kalincik, T.; Rijke, N.; Hillert, J.; Walton, C.; Edan, Gilles; Moreau, Y.; Spelman, T.; Geys, L.; Parciak, T.; Gautrais, C.; Lazovski, N.; Pirmani, A.; Ardeshirdavani, A.; Forsberg, L.; Glaser, A.; Mcburney, R.; Schmidt, H.R.; Bergmann, A.; Braune, S.; Stahmann, A.; Middleton, R.; Salter, A.; van Der Walt, A.; Rojas, J.; van Der Mei, I.; Ivanov, R.; Sciascia Do Olival, G.; Dias, A.; Magyari, M.; Brum, D.; Mendes, M. F.; Alonso, R.; Nicholas, R.; Bauer, J.; Chertcoff, A.; Zabalza, A.; Arrambide, G.; Comi, G.; Peeters, L. M.

Simpson-Yap, S; Pirmani, A; De, Brouwer E; Peeters, LM; Geys, L; Parciak, T; Helme, A; Hillert, J; Moreau, Y; Edan, G

MULTIPLE SCLEROSIS AND RELATED DISORDERS. 66:104072-104072

Puri, Shweta, BDS; Parciak, Ewa C., DDS; Kattadiyil, Mathew T., BDS, MDS, MS

The Journal of Prosthetic Dentistry. 112(3):397-401

Simpson-Yap, S; Pirmani, A; Kalincik, T; Brouwer, ED; Geys, L; Parciak, T; Helme, A; Rijke, N; Hillert, J; Moreau, Y

Rojas JI; Hospital Alemán, Buenos Aires, Argentina.; Centro de Esclerosis Múltiple de Buenos Aires (CEMBA), Buenos Aires, Argentina.; Gracia F; Hospital Santo Tomás, Panamá, República de Panamá.; Parciak T; Universidad Hasselt, Diepenbeek, Bélgica.; Alonso R; Hospital J. M. Ramos Mejía, Buenos Aires, Argentina.; Universidad de Buenos Aires, Buenos Aires, Argentina.; Sanatorio Güemes, Buenos Aires, Argentina.; Becker J; Universidad Pontificia de Rio Grande do Sul, Porto Alegre, Brasil.; Treviño-Frenk I; Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Ciudad de México, México.; Alonso-Serena M; Hospital Italiano de Buenos Aires, Buenos Aires, Argentina.; Giunta D; Hospital Italiano de Buenos Aires, Buenos Aires, Argentina.; Abad P; Hospital Metropolitano de Quito, Quito, Ecuador.; Carnero-Contentti E; Hospital Alemán de Buenos Aires, Buenos Aires, Argentina.; Carrá A; Hospital Británico, Buenos Aires, Argentina.; Hospital Universitario Fundación Favaloro, Buenos Aires, Argentina.; Correa-Díaz EP; Hospital Carlos Andrade Marín. Universidad Central del Ecuador, Quito, Ecuador.; Correale J; Fleni, Buenos Aires, Argentina.; Cristiano E; Centro de Esclerosis Múltiple de Buenos Aires (CEMBA), Buenos Aires, Argentina.; Flores J; Instituto Nacional de Neurología y Neurocirugía, Ciudad de México, México.; Fruns M; Clínica Las Condes , Santiago de Chile, Chile.; Galleguillos L; Clinica Alemana, Santiago de Chile, Chile.; Universidad del Desarrollo, Santiago de Chile, Chile.; Garcea O; Hospital J. M. Ramos Mejía, Buenos Aires, Argentina.; Universidad de Buenos Aires, Buenos Aires, Argentina.; Hamuy F; Hospital IMT, Asunción, Paraguay.; Lana-Peixoto M; Universidad Federal de Minas Gerais, Belo Horizonte, Brasil.; Navas C; Clínica Universitaria Colombia, Bogotá, Colombia.; Pappais-Alvarenga R; Universidad Federal de Río de Janeiro, Rio de Janeiro, Brasil.; Patrucco L; Centro de Esclerosis Múltiple de Buenos Aires (CEMBA), Buenos Aires, Argentina.; Rivera V; Universidad de Medicina Baylor, Houston, EE.UU.; Tenembaum S; Hospital de Pediatría Prof. Dr. Juan P. Garrahan, Buenos Aires, Argentina.; Ysrraelit MC; Fleni, Buenos Aires, Argentina.; Peeters LM; Universidad Hasselt, Diepenbeek, Bélgica.

Publisher: IMR Press Country of Publication: Singapore NLM ID: 7706841 Publication Model: Print Cited Medium: Internet ISSN: 1576-6578 (Electronic) Linking ISSN: 02100010 NLM ISO Abbreviation: Rev Neurol Subsets: MEDLINE

Geys L; University MS Center, Hasselt-Pelt, Belgium (LG, TParciak, AP, BVW, LMP).; Biomedical Research Institute (BIOMED) (LG, TParciak, AP, BVW, LMP), University of Hasselt, Diepenbeek, Belgium.; Data Science Institute (LG, TParciak, AP, LMP), University of Hasselt, Diepenbeek, Belgium.; Parciak T; University MS Center, Hasselt-Pelt, Belgium (LG, TParciak, AP, BVW, LMP).; Biomedical Research Institute (BIOMED) (LG, TParciak, AP, BVW, LMP), University of Hasselt, Diepenbeek, Belgium.; Data Science Institute (LG, TParciak, AP, LMP), University of Hasselt, Diepenbeek, Belgium.; University Medical Center Göttingen, Department of Medical Informatics, Germany (TParciak).; Pirmani A; University MS Center, Hasselt-Pelt, Belgium (LG, TParciak, AP, BVW, LMP).; Biomedical Research Institute (BIOMED) (LG, TParciak, AP, BVW, LMP), University of Hasselt, Diepenbeek, Belgium.; ESAT-STADIUS, KU Leuven, Leuven, Belgium (AP).; McBurney R; Accelerated Cure Project for MS, Waltham, MA, USA (RM, HS).; Schmidt H; Accelerated Cure Project for MS, Waltham, MA, USA (RM, HS).; Malbaša T; Association of Multiple Sclerosis Societies of Croatia, Zagreb (TM).; Ziemssen T; Center for Clinical Neuroscience, University Hospital Dresden, Germany (TZ).; Bergmann A; NeuroTransData Study Group, Neuburg/Donau, Germany (AB).; Rojas JI; Neurology Department, Hospital Universitario de CEMIC, Buenos Aires, Argentina (JIR).; Cristiano E; MS Center of Buenos Aires (CEMBA), Argentina (EC).; García-Merino JA; Department of Neurology, Universidad Autonoma de Madrid, Spain (JAG-M).; Neurology Service, Puerta de Hierro Hospital, Majadahonda, Madrid, Spain (JAG-M).; Fernández Ó; University of Malaga, Department of Pharmacology, Spain (OF).; Kuhle J; Neurologic Clinic and Policlinic, MS Center and Research Center for Clinical Neuroimmunology and Neuroscience Basel (RC2NB), University Hospital Basel, University of Basel, Basel, Switzerland (JK).; Gobbi C; Multiple Sclerosis Center, Department of Neurology, Neurocenter of Southern Switzerland, Lugano, Switzerland (CG).; Faculty of Biomedical Sciences, Università della Svizzera Italiana, Lugano, Switzerland (CG).; Delmas A; Life Sciences Department, EHealthLine.com, Inc (AD).; Simpson-Yap S; Neuroepidemiology Unit, Melbourne School of Population and Global Health, The University of Melbourne, Australia (SS-Y, NN).; Nag N; Neuroepidemiology Unit, Melbourne School of Population and Global Health, The University of Melbourne, Australia (SS-Y, NN).; Yamout B; Multiple Sclerosis Center, American University of Beirut Medical Center, Lebanon (BY).; Steinemann N; Data Center of the Swiss Multiple Sclerosis Registry, Epidemiology, Biostatistics and Prevention Institute, University of Zurich, Switzerland (NS).; Seeldrayers P; Department of Neurology, CHU de Charleroi, Charleroi, Belgium (PS).; Dubois B; Department of Neurosciences, Laboratory for Neuroimmunology, KU Leuven, Leuven, Belgium (BD).; Leuven Brain Institute KU Leuven, Leuven, Belgium (BD).; Department of Neurology, University Hospitals Leuven, Leuven, Belgium (BD).; van der Mei I; Menzies Institute for Medical Research, University of Tasmania, Hobart TAS, Australia (IvdM).; Stahmann A; German MS-Registry, MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany (AS).; Drulovic J; Clinic of Neurology, Clinical Center of Serbia, Belgrade, Serbia (JD).; Pekmezovic T; Institute of Epidemiology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia (TPekmezovic).; Brola W; Collegium Medicum, Jan Kochanowski University, Kielce, Poland (WB).; Tintore M; Centre d'Esclerosi Múltiple de Catalunya (Cemcat), Edifici Cemcat, Hospital Universitari Vall d'Hebron, Barcelona, Spain (MT).; Kalkers N; Department of Neurology, OLVG, and Department of Neurology, Amsterdam UMC, Location VUMC, Amsterdam, the Netherlands (NK).; Ivanov R; PMA - Pharma Marketing Advisors, Ltd, Sofia, Bulgaria (RI).; Zakaria M; Department of Neurology, Ain Shams University, Egypt (MZ).; Naseer MA; Department of Neurology, Cairo University, Egypt (MAN).; Van Hecke W; icometrix, Leuven, Belgium (WVH).; Grigoriadis N; Second Neurological University Department, Multiple Sclerosis Center, Aristotle University of Thessaloniki, AHEPA General University Hospital, Thessaloniki Greece (NG, MB).; Boziki M; Second Neurological University Department, Multiple Sclerosis Center, Aristotle University of Thessaloniki, AHEPA General University Hospital, Thessaloniki Greece (NG, MB).; Carra A; MS Center Hospital Britanico, Buenos Aires, Argentina (AC).; Pawlak MA; Department of Neurology and Cerebrovascular Disorders, Poznan University of Medical Sciences, Poznan, Poland (MAP).; Dobson R; Wolfson Institute of Preventive Medicine, Charterhouse Square, London, UK (RD).; Hellwig K; Department of Neurology, Katholisches Klinikum, St Josef Hospital, Ruhr University Bochum, Bochum Germany (KH).; Gallagher A; Clinical Practice Research Datalink (CPRD), Medicines and Healthcare Products Regulatory Agency (MHRA), London, UK (AG).; Leocani L; Clinical Neurology Unit, San Raffaele University, Milan, Italy (LL, GDC).; Dalla Costa G; Hospital Universitário Getulio Vargas, Manaus/Amazonas, Brazil (NAdCS).; de Carvalho Sousa NA; REDONE - Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders, São Paulo, Brazil (NAdCS).; Van Wijmeersch B; University MS Center, Hasselt-Pelt, Belgium (LG, TParciak, AP, BVW, LMP).; Biomedical Research Institute (BIOMED) (LG, TParciak, AP, BVW, LMP), University of Hasselt, Diepenbeek, Belgium.; Noorderhart, Rehabilitation and MS Center, Pelt, Belgium (BVW).; Peeters LM; University MS Center, Hasselt-Pelt, Belgium (LG, TParciak, AP, BVW, LMP).; Biomedical Research Institute (BIOMED) (LG, TParciak, AP, BVW, LMP), University of Hasselt, Diepenbeek, Belgium.; Data Science Institute (LG, TParciak, AP, LMP), University of Hasselt, Diepenbeek, Belgium.

Publisher: Clinicians Group Country of Publication: United States NLM ID: 101132980 Publication Model: Print-Electronic Cited Medium: Print ISSN: 1537-2073 (Print) Linking ISSN: 15372073 NLM ISO Abbreviation: Int J MS Care Subsets: PubMed not MEDLINE

Frahm N; German MS-Registry, MS Forschungs- und Projektentwicklungs-gGmbH (MS Research and Project Development gGmbH [MSFP]) Krausenstr. 50, 30171 Hannover, Germany.; Department of Neurology, Neuroimmunological Section, University Medical Center of Rostock, Gehlsheimer Str. 20, 18147 Rostock, Germany.; Fneish F; German MS-Registry, MS Forschungs- und Projektentwicklungs-gGmbH (MS Research and Project Development gGmbH [MSFP]) Krausenstr. 50, 30171 Hannover, Germany.; Ellenberger D; German MS-Registry, MS Forschungs- und Projektentwicklungs-gGmbH (MS Research and Project Development gGmbH [MSFP]) Krausenstr. 50, 30171 Hannover, Germany.; Haas J; Deutsche Multiple Sklerose Gesellschaft, Bundesverband e.V. (German MS Society Federal Association [DMSG]), Krausenstr. 50, 30171 Hannover, Germany.; Loebermann M; Department of Tropical Medicine, Infectious Diseases and Nephrology, University Medical Center of Rostock, Ernst-Heydemann-Str. 6, 18057 Rostock, Germany.; Parciak T; Biomedical Research Institute & Data Science Institute, Hasselt University, Diepenbeek 3590, Belgium.; Peters M; Gesellschaft für Versorgungsforschung mbH (Society for Health Care Research [GfV]), Krausenstr. 50, 30171 Hannover, Germany.; Pöhlau D; Deutsche Multiple Sklerose Gesellschaft, Bundesverband e.V. (German MS Society Federal Association [DMSG]), Krausenstr. 50, 30171 Hannover, Germany.; Rodgers J; UK MS Register, Swansea University Medical School, Data Science Building, Swansea SA2 8PP, United Kingdom.; Röper AL; German MS-Registry, MS Forschungs- und Projektentwicklungs-gGmbH (MS Research and Project Development gGmbH [MSFP]) Krausenstr. 50, 30171 Hannover, Germany.; Deutsche Multiple Sklerose Gesellschaft, Bundesverband e.V. (German MS Society Federal Association [DMSG]), Krausenstr. 50, 30171 Hannover, Germany.; Schilling S; German MS-Registry, MS Forschungs- und Projektentwicklungs-gGmbH (MS Research and Project Development gGmbH [MSFP]) Krausenstr. 50, 30171 Hannover, Germany.; Stahmann A; German MS-Registry, MS Forschungs- und Projektentwicklungs-gGmbH (MS Research and Project Development gGmbH [MSFP]) Krausenstr. 50, 30171 Hannover, Germany.; Temmes H; Deutsche Multiple Sklerose Gesellschaft, Bundesverband e.V. (German MS Society Federal Association [DMSG]), Krausenstr. 50, 30171 Hannover, Germany.; Zettl UK; Department of Neurology, Neuroimmunological Section, University Medical Center of Rostock, Gehlsheimer Str. 20, 18147 Rostock, Germany.; Middleton RM; UK MS Register, Swansea University Medical School, Data Science Building, Swansea SA2 8PP, United Kingdom.

Publisher: [Oxford] Country of Publication: England NLM ID: 101777707 Publication Model: eCollection Cited Medium: Internet ISSN: 2666-7762 (Electronic) Linking ISSN: 26667762 NLM ISO Abbreviation: Lancet Reg Health Eur Subsets: PubMed not MEDLINE

Pirmani A; ESAT, STADIUS, KU Leuven, Leuven, Belgium.; Biomedical Research Institute, Hasselt University, Diepenbeek, Belgium.; Data Science Institute, Hasselt University, Diepenbeek, Belgium.; University Multiple Sclerosis Center, Hasselt University, Diepenbeek, Belgium.; De Brouwer E; ESAT, STADIUS, KU Leuven, Leuven, Belgium.; Geys L; Biomedical Research Institute, Hasselt University, Diepenbeek, Belgium.; Data Science Institute, Hasselt University, Diepenbeek, Belgium.; University Multiple Sclerosis Center, Hasselt University, Diepenbeek, Belgium.; Parciak T; Biomedical Research Institute, Hasselt University, Diepenbeek, Belgium.; Data Science Institute, Hasselt University, Diepenbeek, Belgium.; University Multiple Sclerosis Center, Hasselt University, Diepenbeek, Belgium.; Moreau Y; ESAT, STADIUS, KU Leuven, Leuven, Belgium.; Peeters LM; Biomedical Research Institute, Hasselt University, Diepenbeek, Belgium.; Data Science Institute, Hasselt University, Diepenbeek, Belgium.; University Multiple Sclerosis Center, Hasselt University, Diepenbeek, Belgium.

Publisher: JMIR Publications Country of Publication: Canada NLM ID: 101645109 Publication Model: Electronic Cited Medium: Print ISSN: 2291-9694 (Print) Linking ISSN: 22919694 NLM ISO Abbreviation: JMIR Med Inform Subsets: PubMed not MEDLINE

Simpson-Yap S; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy. liesbet.peeters@uhasselt.be.; De Brouwer E; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Kalincik T; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Rijke N; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Hillert JA; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Walton C; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Edan G; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Moreau Y; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Spelman T; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Geys L; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Parciak T; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Gautrais C; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Lazovski N; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Pirmani A; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Ardeshirdavanai A; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Forsberg L; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Glaser A; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; McBurney R; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Schmidt H; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Bergmann AB; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Braune S; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Stahmann A; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Middleton R; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Salter A; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Fox RJ; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; van der Walt A; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Butzkueven H; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Alroughani R; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Ozakbas S; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Rojas JI; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; van der Mei I; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Nag N; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Ivanov R; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Sciascia do Olival G; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Dias AE; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Magyari M; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Brum D; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Mendes MF; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Alonso RN; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Nicholas RS; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Bauer J; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Chertcoff AS; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Zabalza A; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Arrambide G; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Fidao A; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Comi G; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.; Peeters L; From the CORe (S.S.-Y., T.K.), Department of Medicine, and Neuroepidemiology Unit (S.S.-Y., N.N., A.F.), Melbourne School of Population & Global Health, University of Melbourne, Parkville, Australia; Menzies Institute for Medical Research (S.S.-Y.), University of Tasmania, Hobart, Australia; ESAT-STADIUS (E.D.B., Y.M., A.P.), KU Leuven, Belgium; Department of Neurology (T.K.), Melbourne MS Centre, Royal Melbourne Hospital, Parkville, Australia; MS International Federation (N.R., C.W.), London, UK; Department of Clinical Neuroscience (J.A.H., T.S., L.F., A.G.), Swedish MS Registry, Stockholm, Sweden; Department of Neurology (G.E.), CHU Pontchaillou, Rennes, France; Karolinska Institutet (T.S.), Solna, Sweden; Biomedical Research Institute-Data Science Institute (L.G., A.P., L.P.), Hasselt University, Belgium; Department of Medical Informatics (T.P.), University Medical Center Göttingen, Germany; Department of Computer Science and AI (C.G.), KU Leuven, Belgium; QMENTA (N.L.), Barcelona, Spain; Medpace Reference Laboratories (A.A.), Molecular Unit, Leuven, Belgium; iConquerMS People-Powered Research Network (R. McBurney, H.S.), Accelerated Cure Project for MS, Waltham, MA; NeuroTransData Study Group (A.B.B., S.B.), NeuroTransData, Neuburg, Germany; German MS-Register by the National MS Society (A. Stahmann), MS Forschungs- und Projektentwicklungs-gGmbH, Hannover, Germany; UK MS Register (R. Middleton, R.S.N.), Swansea University, UK; COViMS (A. Salter, R.J.F.), US; Division of Biostatistics (A. Salter), Washington University in St. Louis, St Louis, MO; Mellen Center for Multiple Sclerosis (R.J.F.), Cleveland Clinic, Cleveland, OH; Department of Neuroscience (A.v.d.W., H.B.), Central Clinical School, Monash University, Melbourne, Australia; Al-Amiri Hospital (R.A.), Kuwait City, Kuwait; Dokuz Eylul University (S.O.), Izmir, Turkey; Neurology Department (J.I.R.), Hospital Universitario de CEMIC; RELACOEM (J.I.R., R.N.A.), Buenos Aires, Argentina; Australian MS Longitudinal Study (I.v.d.M.), Menzies Institute for Medical Research, University of Tasmania, Hobart, Australia; Bulgarian SmartMS COVID-19 Dataset (R.I.), Sofia, Bulgaria; ABEM-Brazilian MS Patients Association (G.S.d.O., A.E.D.), São Paulo, Brazil; Danish Multiple Sclerosis Registry (M.M.), Department of Neurology, University Hospital Rigshospitalet, Glostrup, Denmark; Universidade Estadual Paulista (D.B.), Unesp, Faculdade de Medicina, Botucatu, Brazil; REDONE.br-Brazilian Registry of Multiple Sclerosis and Neuromyelitis Optica Spectrum Disorders (D.B., M.F.M.); Irmandade da Santa Casa de Misericórdia de São Paulo (M.F.M.), Brazil; Multiple Sclerosis University Center (R.N.A.), Ramos Mejia Hospital-EMA, Buenos Aires, Argentina; Imperial College London (R.S.N.); Swansea University (R.S.N.), Swansea, UK; Mental Health Area (J.B.); MS and Demyelinating Diseases (A.S.C.)., Hospital Británico de Buenos Aires, EMA, Argentina; Servei de Neurologia-Neuroimmunologia (A.Z., G.A.), Centre d'Esclerosi Múltiple de Catalunya, (Cemcat); Vall d'Hebron Institut de Recerca (A.Z., G.A.), Vall d'Hebron Hospital Universitari; Universitat Autònoma de Barcelona (A.Z., G.A.), Spain; and Institute of Experimental Neurology (G.C.), Ospedale San Raffaele, Milan, Italy.

Publisher: Lippincott Williams & Wilkins Country of Publication: United States NLM ID: 0401060 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1526-632X (Electronic) Linking ISSN: 00283878 NLM ISO Abbreviation: Neurology Subsets: MEDLINE

Ohle LM; MS Forschungs- und Projektentwicklungs-gGmbH (MS Research and Projectdevelopment gGmbH [MSFP]), Krausenstr 50, 30171, Hannover, Germany.; Ellenberger D; MS Forschungs- und Projektentwicklungs-gGmbH (MS Research and Projectdevelopment gGmbH [MSFP]), Krausenstr 50, 30171, Hannover, Germany.; Flachenecker P; Neurological Rehabilitation Center Quellenhof, Bad Wildbad, Germany.; Friede T; Department of Medical Statistics, University Medical Center Göttingen, Göttingen, Germany.; Haas J; Deutsche Multiple Sklerose Gesellschaft, Bundesverband e.V. (German Multiple Sclerosis Society, Federal Association), Hannover, Germany.; Hellwig K; Department of Neurology, Katholisches Klinikum, St. Joseph Hospital, Ruhr University Bochum, Bochum, Germany.; Parciak T; Department of Medical Informatics, University Medical Center Göttingen, Göttingen, Germany.; Warnke C; Department of Neurology, Medical Faculty, University Hospital of Cologne, Cologne, Germany.; Paul F; Experimental and Clinical Research Center and NeuroCure Clinical Research Center, Max Delbrueck Center for Molecular Medicine and Charité - Universitätsmedizin Berlin, Berlin, Germany.; Zettl UK; Department of Neurology, Neuroimmunological Section, University Medical Center Rostock, Rostock, Germany.; Stahmann A; MS Forschungs- und Projektentwicklungs-gGmbH (MS Research and Projectdevelopment gGmbH [MSFP]), Krausenstr 50, 30171, Hannover, Germany. stahmann@msregister.de.

Publisher: Nature Publishing Group Country of Publication: England NLM ID: 101563288 Publication Model: Electronic Cited Medium: Internet ISSN: 2045-2322 (Electronic) Linking ISSN: 20452322 NLM ISO Abbreviation: Sci Rep Subsets: MEDLINE

Kesztyüs, D; Suhr, M; Parciak, M; Kesztyüs, T

21. Deutscher Kongress für Versorgungsforschung (DKVF); 20221005-20221007; Potsdam; DOC22dkvf034 /20220930/