부산대학교 도서관

Weiss SL; Department of Anesthesiology and Critical Care, The Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA. WeissS@chop.edu.; The Children's Hospital of Philadelphia Pediatric Sepsis Program, Philadelphia, PA, USA. WeissS@chop.edu.; Balamuth F; The Children's Hospital of Philadelphia Pediatric Sepsis Program, Philadelphia, PA, USA.; Department of Pediatrics, The Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA.; Long E; Department of Emergency Medicine, The Royal Children's Hospital, Parkville, VIC, Australia.; Departments of Pediatrics and Critical Care, The University of Melbourne, Parkville, VIC, Australia.; Murdoch Children's Research Institute, Melbourne, VIC, Australia.; Thompson GC; Departments of Pediatrics and Emergency Medicine, Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.; Hayes KL; The Children's Hospital of Philadelphia Pediatric Sepsis Program, Philadelphia, PA, USA.; Katcoff H; Department of Biomedical and Health Informatics, Data Science and Biostatistics Unit, The Children's Hospital of Philadelphia, Philadelphia, PA, USA.; Cook M; Department of Pediatrics, The Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA.; Tsemberis E; Department of Pediatrics, The Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA.; Hickey CP; The Children's Hospital of Philadelphia Pediatric Sepsis Program, Philadelphia, PA, USA.; Williams A; Department of Emergency Medicine, The Royal Children's Hospital, Parkville, VIC, Australia.; Williamson-Urquhart S; Departments of Pediatrics and Emergency Medicine, Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.; Borland ML; Divisions of Emergency Medicine and Pediatrics, Perth Children's Hospital, School of Medicine at the University of Western Australia, Crawley, Australia.; Dalziel SR; Departments of Surgery and Pediatrics: Child and Youth Health, Starship Children's Hospital, University of Auckland, Auckland, New Zealand.; Gelbart B; Departments of Pediatrics and Critical Care, The University of Melbourne, Parkville, VIC, Australia.; Murdoch Children's Research Institute, Melbourne, VIC, Australia.; Australian and New Zealand Intensive Care Society Paediatric Study Group, Camberwell, Australia.; Paediatric Intensive Care Unit, Royal Children's Hospital, Parkville, VIC, Australia.; Freedman SB; Sections of Pediatric Emergency Medicine and Gastroenterology, Departments of Pediatrics and Emergency Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.; Babl FE; Department of Emergency Medicine, The Royal Children's Hospital, Parkville, VIC, Australia.; Departments of Pediatrics and Critical Care, The University of Melbourne, Parkville, VIC, Australia.; Murdoch Children's Research Institute, Melbourne, VIC, Australia.; Huang J; Department of Pediatrics, The Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA.; Department of Biostatistics, Epidemiology, and Informatics, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA.; Kuppermann N; Department of Emergency Medicine and Pediatrics, UC Davis School of Medicine and UC Davis Health, Sacramento, CA, USA.

Publisher: BioMed Central Country of Publication: England NLM ID: 101263253 Publication Model: Electronic Cited Medium: Internet ISSN: 1745-6215 (Electronic) Linking ISSN: 17456215 NLM ISO Abbreviation: Trials Subsets: MEDLINE; In Process

Freedman, S. B.; Williamson-Urquhart, S.; Plint, A. C.; Dixon, A.; Beer, D.; Joubert, G.; Pechlivanoglou, P.; Finkelstein, Y.; Heath, A.; Zhang, J. Z.; Wallace, A.; Offringa, M.; Klassen, T. P.; Pediat Emergency Res Canada Innovative Clinical Trials Study Grp

NEW ENGLAND JOURNAL OF MEDICINE; JUL 1 2025, 393 3, p255-p266, 12p.

Scott L. Weiss; Fran Balamuth; Elliot Long; Graham C. Thompson; Katie L. Hayes; Hannah Katcoff; Marlena Cook; Elena Tsemberis; Christopher P. Hickey; Amanda Williams; Sarah Williamson-Urquhart; Meredith L. Borland; Stuart R. Dalziel; Ben Gelbart; Stephen B. Freedman; Franz E. Babl; Jing Huang; Nathan Kuppermann; E. Long; A. Williams; F. Babl; M. Borland; S. O’Brien; S. Craig; E. Ramaga; A. Kochar; G. Nivea; S. Jani; D. Thosar; A. Rao; N. Phillips; S. George; A. Lithgow; C. Mitchell; G. Thompson; S. Freedman; S. Williamson-Urquhart; E. Gilad; S. Cooke; P. Judge; S. Murthy; N. Kissoon; W. Alqurashi; F. Alnaji; G. Sangha; A. Mater; M. Brashaw; S. Curtis; A. Joffe; Y. Shayan; M. Tucci; K. Gripp; S. Berthelot; M. Weiss; A. Davis; E. Guifoyle; M. Moretti; A. Kam; M. Parker; B. Rochwerg; J. Emsley; N. Verma; A. Sehgal; S. Dalziel; M. Bonisch; E. Tan; J. Neutze; F. Balamuth; S. Weiss; E. Tsemberis; J. Huang; M. Cook; H. Katcoff; K. Hayes; C. Hickey; M. Eisenberg; D. Lewander; C. Morris; D. Hurley; S. Baumer-Mouradian; L. Ambroggio; K. Grice; A. Festekjian; B. Hickey; R. Sada; J. Dodson; M. Badawy; C. Lebel; M. Elliott; I. Koutroulis; K. Hom; M. Eckerle; M. Singleton; A. Rogers; V. Cervantes; S. Duffy; I. Bahamon; L. Alpern; A. Sirizi; A. Haider Ahmad; A. Rubi Banegas; J. Lloyd; K. DiCostanzo; M. Kwok; J. Ochs; R. Lane; T. Harbour; N. Uspal; K. Cappetto; L. Clukies; D. Robinsonm; J. McManemy; V. Gonzales; C. Vance; N. Kupperman; K. Pimenta; K. Mansour; L. Lavrisha; M. Ramirez; J. Grad

Trials
Trials, Vol 22, Iss 1, Pp 1-14 (2021)
Trials, vol 22, iss 1

Heath A; University of Toronto, Toronto, Ontario, Canada. anna.heath@sickkids.ca.; University College London, London, United Kingdom. anna.heath@sickkids.ca.; Child Health Evaluative Sciences, The Hospital for Sick Children, Toronto, Ontario, Canada. anna.heath@sickkids.ca.; Rios JD; Child Health Evaluative Sciences, The Hospital for Sick Children, Toronto, Ontario, Canada.; Williamson-Urquhart S; Pediatric Emergency Research Team, Alberta Children's Hospital, University of Calgary, Calgary, Alberta, Canada.; Pechlivanoglou P; Child Health Evaluative Sciences, The Hospital for Sick Children, Toronto, Ontario, Canada.; Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada.; Offringa M; Child Health Evaluative Sciences, The Hospital for Sick Children, Toronto, Ontario, Canada.; Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada.; Division of Neonatology, The Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada.; McCabe C; Institute of Health Economics, Edmonton, Alberta, Canada.; Hopkin G; Institute of Health Economics, Edmonton, Alberta, Canada.; Plint AC; Division of Emergency Medicine, Children's Hospital of Eastern Ontario, Ottawa, Canada.; University of Ottawa, Ottawa, Canada.; Children's Hospital Research Institute, Ottawa, Canada.; Dixon A; Stollery Children's Hospital, University of Alberta, Women's and Children's Health Research Institute, Edmonton, Canada.; Beer D; Pediatrics/Pediatric Emergency Medicine, Department of Pediatrics and Child Health, Children's Hospital Research Institute of Manitoba, Winnipeg, Manitoba, Canada.; Gouin S; Université de Montréal, Montréal, Québec, Canada.; CHU Sainte-Justine, Montréal, Québec, Canada.; Joubert G; Children's Hospital, Western University, London, Ontario, Canada.; Klassen TP; University of Manitoba, Winnipeg, Manitoba, Canada.; Children's Hospital Research Institute of Manitoba, Winnipeg, Manitoba, Canada.; Freedman SB; Sections of Pediatric Emergency Medicine and Gastroenterology, Department of Pediatrics, Alberta Children's Hospital, Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.

Publisher: BioMed Central Country of Publication: England NLM ID: 101263253 Publication Model: Electronic Cited Medium: Internet ISSN: 1745-6215 (Electronic) Linking ISSN: 17456215 NLM ISO Abbreviation: Trials Subsets: MEDLINE

Freedman SB; Alberta Children's Hospital Foundation Professor in Child Health and Wellness, Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, 28 Oki Drive NW, Calgary, AB, T3B 6A8, Canada. Stephen.freedman@ahs.ca.; Xie J; Alberta Children's Hospital Foundation Professor in Child Health and Wellness, Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, 28 Oki Drive NW, Calgary, AB, T3B 6A8, Canada.; Nettel-Aguirre A; Alberta Children's Hospital Foundation Professor in Child Health and Wellness, Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, 28 Oki Drive NW, Calgary, AB, T3B 6A8, Canada.; Pang XL; University of Alberta, 116 St & 85 Ave., Edmonton, AB, T6G 2R3, Canada.; Chui L; University of Alberta, 116 St & 85 Ave., Edmonton, AB, T6G 2R3, Canada.; Williamson-Urquhart S; Alberta Children's Hospital Foundation Professor in Child Health and Wellness, Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, 28 Oki Drive NW, Calgary, AB, T3B 6A8, Canada.; Schnadower D; University of Cincinnati, 3333 Burnet Ave, Cincinnati, OH, UCA 45229, USA.; Schuh S; University of Toronto, 555 University Avenue, Toronto, ON, M5G 1X8, Canada.; Sherman PM; University of Toronto, 555 University Avenue, Toronto, ON, M5G 1X8, Canada.; Lee BE; University of Alberta, 116 St & 85 Ave., Edmonton, AB, T6G 2R3, Canada.; Gouin S; Université de Montréal, 3175 Chemin de la Côte-Sainte-Catherine, Montréal, QC, H3T 1C5, Canada.; Farion KJ; University of Ottawa, 401 Smyth Rd, Ottawa, ON, K1H 8L1, Canada.; Poonai N; University of Western Ontario, 800 Commissioners Road E, London, ON, N6A 5W9, Canada.; Hurley KF; Dalhousie University, 5980 University Avenue, PO Box 9700, Halifax, NS, B3K 6R8, Canada.; Qiu Y; University of Alberta, 116 St & 85 Ave., Edmonton, AB, T6G 2R3, Canada.; Ghandi B; University of Alberta, 116 St & 85 Ave., Edmonton, AB, T6G 2R3, Canada.; Lloyd C; University of Alberta, 116 St & 85 Ave., Edmonton, AB, T6G 2R3, Canada.; Finkelstein Y; University of Toronto, 555 University Avenue, Toronto, ON, M5G 1X8, Canada.

Publisher: Nature Pub. Group Country of Publication: England NLM ID: 101528555 Publication Model: Electronic Cited Medium: Internet ISSN: 2041-1723 (Electronic) Linking ISSN: 20411723 NLM ISO Abbreviation: Nat Commun Subsets: MEDLINE

Horne RG; Cell Biology Program, Research Institute, Hospital for Sick Children, Toronto, ON, Canada.; Freedman SB; Sections of Pediatric Emergency Medicine and Gastroenterology, Department of Pediatrics, Alberta Children's Hospital, Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.; Johnson-Henry KC; Cell Biology Program, Research Institute, Hospital for Sick Children, Toronto, ON, Canada.; Pang XL; Alberta Precision Laboratories - Public Health Laboratory (ProvLab), Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada.; Lee BE; Women and Children's Research Institute, Stollery Children's Hospital, University of Alberta, Edmonton, AB, Canada.; Farion KJ; Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa, ON, Canada.; Gouin S; Departments of Emergency Medicine and Pediatrics, Centre Hospitalier Universitaire (CHU) Sainte-Justine, Université de Montréal, Montréal, QC, Canada.; Schuh S; Division of Emergency Medicine, Department of Paediatrics, Hospital for Sick Children, University of Toronto, Toronto, ON, Canada.; Poonai N; Division of Pediatric Emergency Medicine, London Children's Hospital Health Science Centre, Department of Pediatrics, Western University, London, ON, Canada.; Hurley KF; Pediatric Emergency Medicine, Izaak Walton Killam (IWK) Children's Hospital, Dalhousie University, Halifax, NS, Canada.; Finkelstein Y; Division of Emergency Medicine, Department of Paediatrics, Hospital for Sick Children, University of Toronto, Toronto, ON, Canada.; Xie J; Pediatric Emergency Medicine, Izaak Walton Killam (IWK) Children's Hospital, Dalhousie University, Halifax, NS, Canada.; Williamson-Urquhart S; Section of Pediatric Emergency Medicine, Department of Pediatrics, Alberta Children's Hospital, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.; Chui L; Alberta Precision Laboratories - Public Health Laboratory (ProvLab), Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB, Canada.; Rossi L; Department of Biochemistry and Biomedical Sciences, McMaster University Medical Centre, Hamilton, ON, Canada.; Surette MG; Department of Biochemistry and Biomedical Sciences, McMaster University Medical Centre, Hamilton, ON, Canada.; Sherman PM; Cell Biology Program, Research Institute, Hospital for Sick Children, Toronto, ON, Canada.; Division of Gastroenterology, Hepatology and Nutrition, Department of Paediatrics, Hospital for Sick Children, University of Toronto, Toronto, ON, Canada.

Publisher: Frontiers Media SA Country of Publication: Switzerland NLM ID: 101585359 Publication Model: eCollection Cited Medium: Internet ISSN: 2235-2988 (Electronic) Linking ISSN: 22352988 NLM ISO Abbreviation: Front Cell Infect Microbiol Subsets: MEDLINE

Freedman SB; Sections of Pediatric Emergency Medicine and Gastroenterology, Departments of Pediatrics and Emergency Medicine, Alberta Children's Hospital, Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada. Stephen.freedman@ahs.ca.; Williamson-Urquhart S; Alberta Children's Hospital, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.; Heath A; The Hospital for Sick Children, Division of Biostatistics, Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada.; Department of Statistical Science, University College London, London, UK.; Pechlivanoglou P; The Hospital for Sick Children, Institute for Health Policy Management and Evaluation, University of Toronto, Toronto, ON, Canada.; Hopkin G; Institute of Health Economics, Edmonton, AB, Canada.; Gouin S; Departments of Pediatric Emergency Medicine and Pediatrics, CHU Sainte-Justine, Université de Montréal, Montreal, QC, Canada.; Plint AC; Children's Hospital of Eastern Ontario, Departments of Pediatric and Emergency Medicine, University of Ottawa, Ottawa, ON, Canada.; Dixon A; Stollery Children's Hospital, Department of Pediatrics, University of Alberta, Women and Children's Health Research Institute, Edmonton, AB, Canada.; Beer D; Max Rady College of Medicine, Pediatrics and Child Health, Rady Faculty of Health Sciences, University of Manitoba, and the Children's Hospital Research Institute of Manitoba, Winnipeg, MB, Canada.; Joubert G; Division of Paediatric Emergency Medicine, Department of Paediatrics, Children's Hospital LHSC, Western University, London, ON, Canada.; McCabe C; Institute of Health Economics and the Department of Emergency Medicine, University of Alberta, Edmonton, AB, Canada.; Finkelstein Y; Divisions of Emergency Medicine and Clinical Pharmacology and Toxicology, Department of Paediatrics, Hospital for Sick Children, University of Toronto, Toronto, ON, Canada.; Klassen TP; Max Rady College of Medicine, Pediatrics and Child Health, Rady Faculty of Health Sciences, University of Manitoba, and the Children's Hospital Research Institute of Manitoba, Winnipeg, MB, Canada.

Publisher: BioMed Central Country of Publication: England NLM ID: 101263253 Publication Model: Electronic Cited Medium: Internet ISSN: 1745-6215 (Electronic) Linking ISSN: 17456215 NLM ISO Abbreviation: Trials Subsets: MEDLINE

Qiu Y; Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB T6G 2R3, Canada.; Freedman SB; Sections of Pediatric Emergency Medicine and Gastroenterology, Departments of Pediatrics and Emergency Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB T3B 6A8, Canada.; Williamson-Urquhart S; Paediatric Emergency Research Team, Alberta Children's Hospital, University of Calgary, Calgary, AB T3B 6A8, Canada.; Farion KJ; Departments of Pediatrics and Emergency Medicine, University of Ottawa, Ottawa, ON K1H 8L1, Canada.; Gouin S; Division of Paediatric Emergency Medicine, Department of Pediatrics, Centre Hospitalier Universitaire Ste-Justine, Université de Montréal, Montréal, QC H3T 1C5, Canada.; Poonai N; Division of Pediatric Emergency Medicine, Departments of Pediatrics, Internal Medicine, Epidemiology & Biostatistics, Schulich School of Medicine and Dentistry, London, ON N6A 5W9, Canada.; Schuh S; Division of Paediatric Emergency Medicine, The Hospital for Sick Children, University of Toronto, Toronto, ON M5G 1X8, Canada.; Finkelstein Y; Divisions of Emergency Medicine and Clinical Pharmacology and Toxicology, Research Institute, Hospital for Sick Children, University of Toronto, Toronto, ON M5G 1X8, Canada.; Xie J; Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, AB T3B 6A8, Canada.; Lee BE; Department of Pediatrics, Faculty of Medicine & Dentistry, Women and Children's Health Research Institute, Stollery Children's Hospital, University of Alberta, Edmonton, AB T6G 2R3, Canada.; Chui L; Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB T6G 2R3, Canada.; Pang X; Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, AB T6G 2R3, Canada.; Alberta Precision Laboratory, Public Health Laboratory, Edmonton, AB T6G 2J2, Canada.; On Behalf Of The Pediatric Emergency Research Canada Probiotic Regimen For Outpatient Gastroenteritis Utility Of Treatment Progut Trial Group

Publisher: MDPI Country of Publication: Switzerland NLM ID: 101509722 Publication Model: Electronic Cited Medium: Internet ISSN: 1999-4915 (Electronic) Linking ISSN: 19994915 NLM ISO Abbreviation: Viruses Subsets: MEDLINE

S. Freedman; S. Soofi; A. Willan; S. Williamson-Urquhart; N. Ali; J. Xie; F. Dawoud; Z. Bhutta

CJEM. 20:S35-S35

S. Freedman; S. Williamson-Urquhart; K. Farion; S. Gouin; A. Willan; N. Poonai; K. Hurley; P. Sherman; Y. Finkelstein; B. Lee; X. Pang; L. Chui; D. Schnadower; J. Xie; M. Gorelick; S. Schuh

CJEM. 20:S5-S5

Freedman SB; Sections of Pediatric Emergency Medicine and Gastroenterology, Department of Pediatrics, Alberta Children's Hospital, Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, Canada.; Department of Emergency Medicine, Cumming School of Medicine, University of Calgary, Calgary, Canada.; Horne R; Cell Biology Program, Research Institute, Hospital for Sick Children, Toronto, Canada.; Johnson-Henry K; Cell Biology Program, Research Institute, Hospital for Sick Children, Toronto, Canada.; Xie J; Section of Pediatric Emergency Medicine, Department of Pediatrics, Alberta Children's Hospital, Cumming School of Medicine, University of Calgary, Calgary, Canada.; Williamson-Urquhart S; Section of Pediatric Emergency Medicine, Department of Pediatrics, Alberta Children's Hospital, Cumming School of Medicine, University of Calgary, Calgary, Canada.; Chui L; Alberta Precision Laboratories - ProvLab, Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Canada.; Pang XL; Alberta Precision Laboratories - ProvLab, Department of Laboratory Medicine and Pathology, University of Alberta, Edmonton, Canada.; Lee B; Department of Pediatrics, Faculty of Medicine & Dentistry, Women and Children's Health Research Institute, University of Alberta, Edmonton, Canada.; Schuh S; Division of Emergency Medicine, Department of Paediatrics, Hospital for Sick Children, Toronto, Canada.; Finkelstein Y; Divisions of Emergency Medicine and Clinical Pharmacology and Toxicology, Research Institute, Hospital for Sick Children, University of Toronto, Toronto, Canada.; Gouin S; Departments of Pediatric Emergency Medicine & Pediatrics, CHU Sainte-Justine, Université de Montréal, Montreal, Canada.; Farion KJ; Departments of Pediatrics and Emergency Medicine, and Pediatric Emergency Department, Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa, Canada.; Poonai N; Division of Pediatric Emergency Medicine, Departments of Pediatrics, Internal Medicine, Epidemiology & Biostatistics, Schulich School of Medicine and Dentistry, London, Canada.; Hurley K; Division of Paediatric Emergency Medicine, Dalhousie University, Halifax, Canada.; Schnadower D; Division of Emergency Medicine, Cincinnati Children's Hospital Medical Center and University of Cincinnati College of Medicine, Cincinnati, OH, USA.; Sherman PM; Division of Gastroenterology, Hepatology, and Nutrition, Department of Paediatrics, and the Cell Biology Program, Research Institute, Hospital for Sick Children, Toronto, Canada.

Publisher: Elsevier Country of Publication: United States NLM ID: 0376027 Publication Model: Print Cited Medium: Internet ISSN: 1938-3207 (Electronic) Linking ISSN: 00029165 NLM ISO Abbreviation: Am J Clin Nutr Subsets: MEDLINE

Freedman SB; Sections of Paediatric Emergency Medicine and Gastroenterology, Alberta Children's Hospital, Alberta Children's Hospital Research Institute, University of Calgary, 2888 Shaganappi Trail NW, Calgary, AB T3B 6A8, Canada. stephen.freedman@albertahealthservices.ca.; Williamson-Urquhart S; Schuh S; Sherman PM; Farion KJ; Gouin S; Willan AR; Goeree R; Johnson DW; Black K; Schnadower D; Gorelick MH

Publisher: BioMed Central Country of Publication: England NLM ID: 101263253 Publication Model: Electronic Cited Medium: Internet ISSN: 1745-6215 (Electronic) Linking ISSN: 17456215 NLM ISO Abbreviation: Trials Subsets: MEDLINE

Freedman SB; From the Sections of Pediatric Emergency Medicine and Gastroenterology, Alberta Children's Hospital, Alberta Children's Hospital Research Institute (S.B.F.), and the Section of Pediatric Emergency Medicine, Alberta Children's Hospital (S.W.-U., J.X.), Cumming School of Medicine, University of Calgary, Calgary, the Departments of Pediatrics and Emergency Medicine, Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa (K.J.F.), the Division of Pediatric Emergency Medicine, Department of Pediatrics, Centre Hospitalier Universitaire Sainte-Justine, Université de Montréal, Montreal (S.G.), Ontario Child Health Support Unit, SickKids Research Institute, the Division of Biostatistics, Dalla Lana School of Public Health (A.R.W.), the Division of Gastroenterology, Hepatology, and Nutrition (P.M.S.), the Divisions of Pediatric Emergency Medicine and Clinical Pharmacology and Toxicology (Y.F.), and the Division of Pediatric Emergency Medicine and Research Institute (S.S.), Hospital for Sick Children, University of Toronto, Toronto, the Division of Emergency Medicine, London Health Sciences Centre, Department of Pediatrics, Schulich School of Medicine and Dentistry, Western University, London, ON (N.P.), the Division of Pediatric Emergency Medicine, IWK Health Centre, Halifax, NS (K.H.), the Department of Pediatrics, Faculty of Medicine and Dentistry, Women and Children's Health Research Institute (B.E.L.) and the Provincial Laboratory for Public Health-Alberta Public Laboratories and Department of Laboratory Medicine and Pathology (X.-L.P., L.C.), University of Alberta, Edmonton - all in Canada; the Division of Pediatric Emergency Medicine, Washington University School of Medicine, St. Louis (D.S.); and Children's Minnesota and Department of Pediatrics, University of Minnesota Medical School, Minneapolis (M.G.).; Williamson-Urquhart S; From the Sections of Pediatric Emergency Medicine and Gastroenterology, Alberta Children's Hospital, Alberta Children's Hospital Research Institute (S.B.F.), and the Section of Pediatric Emergency Medicine, Alberta Children's Hospital (S.W.-U., J.X.), Cumming School of Medicine, University of Calgary, Calgary, the Departments of Pediatrics and Emergency Medicine, Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa (K.J.F.), the Division of Pediatric Emergency Medicine, Department of Pediatrics, Centre Hospitalier Universitaire Sainte-Justine, Université de Montréal, Montreal (S.G.), Ontario Child Health Support Unit, SickKids Research Institute, the Division of Biostatistics, Dalla Lana School of Public Health (A.R.W.), the Division of Gastroenterology, Hepatology, and Nutrition (P.M.S.), the Divisions of Pediatric Emergency Medicine and Clinical Pharmacology and Toxicology (Y.F.), and the Division of Pediatric Emergency Medicine and Research Institute (S.S.), Hospital for Sick Children, University of Toronto, Toronto, the Division of Emergency Medicine, London Health Sciences Centre, Department of Pediatrics, Schulich School of Medicine and Dentistry, Western University, London, ON (N.P.), the Division of Pediatric Emergency Medicine, IWK Health Centre, Halifax, NS (K.H.), the Department of Pediatrics, Faculty of Medicine and Dentistry, Women and Children's Health Research Institute (B.E.L.) and the Provincial Laboratory for Public Health-Alberta Public Laboratories and Department of Laboratory Medicine and Pathology (X.-L.P., L.C.), University of Alberta, Edmonton - all in Canada; the Division of Pediatric Emergency Medicine, Washington University School of Medicine, St. Louis (D.S.); and Children's Minnesota and Department of Pediatrics, University of Minnesota Medical School, Minneapolis (M.G.).; Farion KJ; From the Sections of Pediatric Emergency Medicine and Gastroenterology, Alberta Children's Hospital, Alberta Children's Hospital Research Institute (S.B.F.), and the Section of Pediatric Emergency Medicine, Alberta Children's Hospital (S.W.-U., J.X.), Cumming School of Medicine, University of Calgary, Calgary, the Departments of Pediatrics and Emergency Medicine, Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa (K.J.F.), the Division of Pediatric Emergency Medicine, Department of Pediatrics, Centre Hospitalier Universitaire Sainte-Justine, Université de Montréal, Montreal (S.G.), Ontario Child Health Support Unit, SickKids Research Institute, the Division of Biostatistics, Dalla Lana School of Public Health (A.R.W.), the Division of Gastroenterology, Hepatology, and Nutrition (P.M.S.), the Divisions of Pediatric Emergency Medicine and Clinical Pharmacology and Toxicology (Y.F.), and the Division of Pediatric Emergency Medicine and Research Institute (S.S.), Hospital for Sick Children, University of Toronto, Toronto, the Division of Emergency Medicine, London Health Sciences Centre, Department of Pediatrics, Schulich School of Medicine and Dentistry, Western University, London, ON (N.P.), the Division of Pediatric Emergency Medicine, IWK Health Centre, Halifax, NS (K.H.), the Department of Pediatrics, Faculty of Medicine and Dentistry, Women and Children's Health Research Institute (B.E.L.) and the Provincial Laboratory for Public Health-Alberta Public Laboratories and Department of Laboratory Medicine and Pathology (X.-L.P., L.C.), University of Alberta, Edmonton - all in Canada; the Division of Pediatric Emergency Medicine, Washington University School of Medicine, St. Louis (D.S.); and Children's Minnesota and Department of Pediatrics, University of Minnesota Medical School, Minneapolis (M.G.).; Gouin S; From the Sections of Pediatric Emergency Medicine and Gastroenterology, Alberta Children's Hospital, Alberta Children's Hospital Research Institute (S.B.F.), and the Section of Pediatric Emergency Medicine, Alberta Children's Hospital (S.W.-U., J.X.), Cumming School of Medicine, University of Calgary, Calgary, the Departments of Pediatrics and Emergency Medicine, Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa (K.J.F.), the Division of Pediatric Emergency Medicine, Department of Pediatrics, Centre Hospitalier Universitaire Sainte-Justine, Université de Montréal, Montreal (S.G.), Ontario Child Health Support Unit, SickKids Research Institute, the Division of Biostatistics, Dalla Lana School of Public Health (A.R.W.), the Division of Gastroenterology, Hepatology, and Nutrition (P.M.S.), the Divisions of Pediatric Emergency Medicine and Clinical Pharmacology and Toxicology (Y.F.), and the Division of Pediatric Emergency Medicine and Research Institute (S.S.), Hospital for Sick Children, University of Toronto, Toronto, the Division of Emergency Medicine, London Health Sciences Centre, Department of Pediatrics, Schulich School of Medicine and Dentistry, Western University, London, ON (N.P.), the Division of Pediatric Emergency Medicine, IWK Health Centre, Halifax, NS (K.H.), the Department of Pediatrics, Faculty of Medicine and Dentistry, Women and Children's Health Research Institute (B.E.L.) and the Provincial Laboratory for Public Health-Alberta Public Laboratories and Department of Laboratory Medicine and Pathology (X.-L.P., L.C.), University of Alberta, Edmonton - all in Canada; the Division of Pediatric Emergency Medicine, Washington University School of Medicine, St. Louis (D.S.); and Children's Minnesota and Department of Pediatrics, University of Minnesota Medical School, Minneapolis (M.G.).; Willan AR; From the Sections of Pediatric Emergency Medicine and Gastroenterology, Alberta Children's Hospital, Alberta Children's Hospital Research Institute (S.B.F.), and the Section of Pediatric Emergency Medicine, Alberta Children's Hospital (S.W.-U., J.X.), Cumming School of Medicine, University of Calgary, Calgary, the Departments of Pediatrics and Emergency Medicine, Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa (K.J.F.), the Division of Pediatric Emergency Medicine, Department of Pediatrics, Centre Hospitalier Universitaire Sainte-Justine, Université de Montréal, Montreal (S.G.), Ontario Child Health Support Unit, SickKids Research Institute, the Division of Biostatistics, Dalla Lana School of Public Health (A.R.W.), the Division of Gastroenterology, Hepatology, and Nutrition (P.M.S.), the Divisions of Pediatric Emergency Medicine and Clinical Pharmacology and Toxicology (Y.F.), and the Division of Pediatric Emergency Medicine and Research Institute (S.S.), Hospital for Sick Children, University of Toronto, Toronto, the Division of Emergency Medicine, London Health Sciences Centre, Department of Pediatrics, Schulich School of Medicine and Dentistry, Western University, London, ON (N.P.), the Division of Pediatric Emergency Medicine, IWK Health Centre, Halifax, NS (K.H.), the Department of Pediatrics, Faculty of Medicine and Dentistry, Women and Children's Health Research Institute (B.E.L.) and the Provincial Laboratory for Public Health-Alberta Public Laboratories and Department of Laboratory Medicine and Pathology (X.-L.P., L.C.), University of Alberta, Edmonton - all in Canada; the Division of Pediatric Emergency Medicine, Washington University School of Medicine, St. Louis (D.S.); and Children's Minnesota and Department of Pediatrics, University of Minnesota Medical School, Minneapolis (M.G.).; Poonai N; From the Sections of Pediatric Emergency Medicine and Gastroenterology, Alberta Children's Hospital, Alberta Children's Hospital Research Institute (S.B.F.), and the Section of Pediatric Emergency Medicine, Alberta Children's Hospital (S.W.-U., J.X.), Cumming School of Medicine, University of Calgary, Calgary, the Departments of Pediatrics and Emergency Medicine, Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa (K.J.F.), the Division of Pediatric Emergency Medicine, Department of Pediatrics, Centre Hospitalier Universitaire Sainte-Justine, Université de Montréal, Montreal (S.G.), Ontario Child Health Support Unit, SickKids Research Institute, the Division of Biostatistics, Dalla Lana School of Public Health (A.R.W.), the Division of Gastroenterology, Hepatology, and Nutrition (P.M.S.), the Divisions of Pediatric Emergency Medicine and Clinical Pharmacology and Toxicology (Y.F.), and the Division of Pediatric Emergency Medicine and Research Institute (S.S.), Hospital for Sick Children, University of Toronto, Toronto, the Division of Emergency Medicine, London Health Sciences Centre, Department of Pediatrics, Schulich School of Medicine and Dentistry, Western University, London, ON (N.P.), the Division of Pediatric Emergency Medicine, IWK Health Centre, Halifax, NS (K.H.), the Department of Pediatrics, Faculty of Medicine and Dentistry, Women and Children's Health Research Institute (B.E.L.) and the Provincial Laboratory for Public Health-Alberta Public Laboratories and Department of Laboratory Medicine and Pathology (X.-L.P., L.C.), University of Alberta, Edmonton - all in Canada; the Division of Pediatric Emergency Medicine, Washington University School of Medicine, St. Louis (D.S.); and Children's Minnesota and Department of Pediatrics, University of Minnesota Medical School, Minneapolis (M.G.).; Hurley K; From the Sections of Pediatric Emergency Medicine and Gastroenterology, Alberta Children's Hospital, Alberta Children's Hospital Research Institute (S.B.F.), and the Section of Pediatric Emergency Medicine, Alberta Children's Hospital (S.W.-U., J.X.), Cumming School of Medicine, University of Calgary, Calgary, the Departments of Pediatrics and Emergency Medicine, Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa (K.J.F.), the Division of Pediatric Emergency Medicine, Department of Pediatrics, Centre Hospitalier Universitaire Sainte-Justine, Université de Montréal, Montreal (S.G.), Ontario Child Health Support Unit, SickKids Research Institute, the Division of Biostatistics, Dalla Lana School of Public Health (A.R.W.), the Division of Gastroenterology, Hepatology, and Nutrition (P.M.S.), the Divisions of Pediatric Emergency Medicine and Clinical Pharmacology and Toxicology (Y.F.), and the Division of Pediatric Emergency Medicine and Research Institute (S.S.), Hospital for Sick Children, University of Toronto, Toronto, the Division of Emergency Medicine, London Health Sciences Centre, Department of Pediatrics, Schulich School of Medicine and Dentistry, Western University, London, ON (N.P.), the Division of Pediatric Emergency Medicine, IWK Health Centre, Halifax, NS (K.H.), the Department of Pediatrics, Faculty of Medicine and Dentistry, Women and Children's Health Research Institute (B.E.L.) and the Provincial Laboratory for Public Health-Alberta Public Laboratories and Department of Laboratory Medicine and Pathology (X.-L.P., L.C.), University of Alberta, Edmonton - all in Canada; the Division of Pediatric Emergency Medicine, Washington University School of Medicine, St. Louis (D.S.); and Children's Minnesota and Department of Pediatrics, University of Minnesota Medical School, Minneapolis (M.G.).; Sherman PM; From the Sections of Pediatric Emergency Medicine and Gastroenterology, Alberta Children's Hospital, Alberta Children's Hospital Research Institute (S.B.F.), and the Section of Pediatric Emergency Medicine, Alberta Children's Hospital (S.W.-U., J.X.), Cumming School of Medicine, University of Calgary, Calgary, the Departments of Pediatrics and Emergency Medicine, Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa (K.J.F.), the Division of Pediatric Emergency Medicine, Department of Pediatrics, Centre Hospitalier Universitaire Sainte-Justine, Université de Montréal, Montreal (S.G.), Ontario Child Health Support Unit, SickKids Research Institute, the Division of Biostatistics, Dalla Lana School of Public Health (A.R.W.), the Division of Gastroenterology, Hepatology, and Nutrition (P.M.S.), the Divisions of Pediatric Emergency Medicine and Clinical Pharmacology and Toxicology (Y.F.), and the Division of Pediatric Emergency Medicine and Research Institute (S.S.), Hospital for Sick Children, University of Toronto, Toronto, the Division of Emergency Medicine, London Health Sciences Centre, Department of Pediatrics, Schulich School of Medicine and Dentistry, Western University, London, ON (N.P.), the Division of Pediatric Emergency Medicine, IWK Health Centre, Halifax, NS (K.H.), the Department of Pediatrics, Faculty of Medicine and Dentistry, Women and Children's Health Research Institute (B.E.L.) and the Provincial Laboratory for Public Health-Alberta Public Laboratories and Department of Laboratory Medicine and Pathology (X.-L.P., L.C.), University of Alberta, Edmonton - all in Canada; the Division of Pediatric Emergency Medicine, Washington University School of Medicine, St. Louis (D.S.); and Children's Minnesota and Department of Pediatrics, University of Minnesota Medical School, Minneapolis (M.G.).; Finkelstein Y; From the Sections of Pediatric Emergency Medicine and Gastroenterology, Alberta Children's Hospital, Alberta Children's Hospital Research Institute (S.B.F.), and the Section of Pediatric Emergency Medicine, Alberta Children's Hospital (S.W.-U., J.X.), Cumming School of Medicine, University of Calgary, Calgary, the Departments of Pediatrics and Emergency Medicine, Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa (K.J.F.), the Division of Pediatric Emergency Medicine, Department of Pediatrics, Centre Hospitalier Universitaire Sainte-Justine, Université de Montréal, Montreal (S.G.), Ontario Child Health Support Unit, SickKids Research Institute, the Division of Biostatistics, Dalla Lana School of Public Health (A.R.W.), the Division of Gastroenterology, Hepatology, and Nutrition (P.M.S.), the Divisions of Pediatric Emergency Medicine and Clinical Pharmacology and Toxicology (Y.F.), and the Division of Pediatric Emergency Medicine and Research Institute (S.S.), Hospital for Sick Children, University of Toronto, Toronto, the Division of Emergency Medicine, London Health Sciences Centre, Department of Pediatrics, Schulich School of Medicine and Dentistry, Western University, London, ON (N.P.), the Division of Pediatric Emergency Medicine, IWK Health Centre, Halifax, NS (K.H.), the Department of Pediatrics, Faculty of Medicine and Dentistry, Women and Children's Health Research Institute (B.E.L.) and the Provincial Laboratory for Public Health-Alberta Public Laboratories and Department of Laboratory Medicine and Pathology (X.-L.P., L.C.), University of Alberta, Edmonton - all in Canada; the Division of Pediatric Emergency Medicine, Washington University School of Medicine, St. Louis (D.S.); and Children's Minnesota and Department of Pediatrics, University of Minnesota Medical School, Minneapolis (M.G.).; Lee BE; From the Sections of Pediatric Emergency Medicine and Gastroenterology, Alberta Children's Hospital, Alberta Children's Hospital Research Institute (S.B.F.), and the Section of Pediatric Emergency Medicine, Alberta Children's Hospital (S.W.-U., J.X.), Cumming School of Medicine, University of Calgary, Calgary, the Departments of Pediatrics and Emergency Medicine, Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa (K.J.F.), the Division of Pediatric Emergency Medicine, Department of Pediatrics, Centre Hospitalier Universitaire Sainte-Justine, Université de Montréal, Montreal (S.G.), Ontario Child Health Support Unit, SickKids Research Institute, the Division of Biostatistics, Dalla Lana School of Public Health (A.R.W.), the Division of Gastroenterology, Hepatology, and Nutrition (P.M.S.), the Divisions of Pediatric Emergency Medicine and Clinical Pharmacology and Toxicology (Y.F.), and the Division of Pediatric Emergency Medicine and Research Institute (S.S.), Hospital for Sick Children, University of Toronto, Toronto, the Division of Emergency Medicine, London Health Sciences Centre, Department of Pediatrics, Schulich School of Medicine and Dentistry, Western University, London, ON (N.P.), the Division of Pediatric Emergency Medicine, IWK Health Centre, Halifax, NS (K.H.), the Department of Pediatrics, Faculty of Medicine and Dentistry, Women and Children's Health Research Institute (B.E.L.) and the Provincial Laboratory for Public Health-Alberta Public Laboratories and Department of Laboratory Medicine and Pathology (X.-L.P., L.C.), University of Alberta, Edmonton - all in Canada; the Division of Pediatric Emergency Medicine, Washington University School of Medicine, St. Louis (D.S.); and Children's Minnesota and Department of Pediatrics, University of Minnesota Medical School, Minneapolis (M.G.).; Pang XL; From the Sections of Pediatric Emergency Medicine and Gastroenterology, Alberta Children's Hospital, Alberta Children's Hospital Research Institute (S.B.F.), and the Section of Pediatric Emergency Medicine, Alberta Children's Hospital (S.W.-U., J.X.), Cumming School of Medicine, University of Calgary, Calgary, the Departments of Pediatrics and Emergency Medicine, Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa (K.J.F.), the Division of Pediatric Emergency Medicine, Department of Pediatrics, Centre Hospitalier Universitaire Sainte-Justine, Université de Montréal, Montreal (S.G.), Ontario Child Health Support Unit, SickKids Research Institute, the Division of Biostatistics, Dalla Lana School of Public Health (A.R.W.), the Division of Gastroenterology, Hepatology, and Nutrition (P.M.S.), the Divisions of Pediatric Emergency Medicine and Clinical Pharmacology and Toxicology (Y.F.), and the Division of Pediatric Emergency Medicine and Research Institute (S.S.), Hospital for Sick Children, University of Toronto, Toronto, the Division of Emergency Medicine, London Health Sciences Centre, Department of Pediatrics, Schulich School of Medicine and Dentistry, Western University, London, ON (N.P.), the Division of Pediatric Emergency Medicine, IWK Health Centre, Halifax, NS (K.H.), the Department of Pediatrics, Faculty of Medicine and Dentistry, Women and Children's Health Research Institute (B.E.L.) and the Provincial Laboratory for Public Health-Alberta Public Laboratories and Department of Laboratory Medicine and Pathology (X.-L.P., L.C.), University of Alberta, Edmonton - all in Canada; the Division of Pediatric Emergency Medicine, Washington University School of Medicine, St. Louis (D.S.); and Children's Minnesota and Department of Pediatrics, University of Minnesota Medical School, Minneapolis (M.G.).; Chui L; From the Sections of Pediatric Emergency Medicine and Gastroenterology, Alberta Children's Hospital, Alberta Children's Hospital Research Institute (S.B.F.), and the Section of Pediatric Emergency Medicine, Alberta Children's Hospital (S.W.-U., J.X.), Cumming School of Medicine, University of Calgary, Calgary, the Departments of Pediatrics and Emergency Medicine, Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa (K.J.F.), the Division of Pediatric Emergency Medicine, Department of Pediatrics, Centre Hospitalier Universitaire Sainte-Justine, Université de Montréal, Montreal (S.G.), Ontario Child Health Support Unit, SickKids Research Institute, the Division of Biostatistics, Dalla Lana School of Public Health (A.R.W.), the Division of Gastroenterology, Hepatology, and Nutrition (P.M.S.), the Divisions of Pediatric Emergency Medicine and Clinical Pharmacology and Toxicology (Y.F.), and the Division of Pediatric Emergency Medicine and Research Institute (S.S.), Hospital for Sick Children, University of Toronto, Toronto, the Division of Emergency Medicine, London Health Sciences Centre, Department of Pediatrics, Schulich School of Medicine and Dentistry, Western University, London, ON (N.P.), the Division of Pediatric Emergency Medicine, IWK Health Centre, Halifax, NS (K.H.), the Department of Pediatrics, Faculty of Medicine and Dentistry, Women and Children's Health Research Institute (B.E.L.) and the Provincial Laboratory for Public Health-Alberta Public Laboratories and Department of Laboratory Medicine and Pathology (X.-L.P., L.C.), University of Alberta, Edmonton - all in Canada; the Division of Pediatric Emergency Medicine, Washington University School of Medicine, St. Louis (D.S.); and Children's Minnesota and Department of Pediatrics, University of Minnesota Medical School, Minneapolis (M.G.).; Schnadower D; From the Sections of Pediatric Emergency Medicine and Gastroenterology, Alberta Children's Hospital, Alberta Children's Hospital Research Institute (S.B.F.), and the Section of Pediatric Emergency Medicine, Alberta Children's Hospital (S.W.-U., J.X.), Cumming School of Medicine, University of Calgary, Calgary, the Departments of Pediatrics and Emergency Medicine, Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa (K.J.F.), the Division of Pediatric Emergency Medicine, Department of Pediatrics, Centre Hospitalier Universitaire Sainte-Justine, Université de Montréal, Montreal (S.G.), Ontario Child Health Support Unit, SickKids Research Institute, the Division of Biostatistics, Dalla Lana School of Public Health (A.R.W.), the Division of Gastroenterology, Hepatology, and Nutrition (P.M.S.), the Divisions of Pediatric Emergency Medicine and Clinical Pharmacology and Toxicology (Y.F.), and the Division of Pediatric Emergency Medicine and Research Institute (S.S.), Hospital for Sick Children, University of Toronto, Toronto, the Division of Emergency Medicine, London Health Sciences Centre, Department of Pediatrics, Schulich School of Medicine and Dentistry, Western University, London, ON (N.P.), the Division of Pediatric Emergency Medicine, IWK Health Centre, Halifax, NS (K.H.), the Department of Pediatrics, Faculty of Medicine and Dentistry, Women and Children's Health Research Institute (B.E.L.) and the Provincial Laboratory for Public Health-Alberta Public Laboratories and Department of Laboratory Medicine and Pathology (X.-L.P., L.C.), University of Alberta, Edmonton - all in Canada; the Division of Pediatric Emergency Medicine, Washington University School of Medicine, St. Louis (D.S.); and Children's Minnesota and Department of Pediatrics, University of Minnesota Medical School, Minneapolis (M.G.).; Xie J; From the Sections of Pediatric Emergency Medicine and Gastroenterology, Alberta Children's Hospital, Alberta Children's Hospital Research Institute (S.B.F.), and the Section of Pediatric Emergency Medicine, Alberta Children's Hospital (S.W.-U., J.X.), Cumming School of Medicine, University of Calgary, Calgary, the Departments of Pediatrics and Emergency Medicine, Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa (K.J.F.), the Division of Pediatric Emergency Medicine, Department of Pediatrics, Centre Hospitalier Universitaire Sainte-Justine, Université de Montréal, Montreal (S.G.), Ontario Child Health Support Unit, SickKids Research Institute, the Division of Biostatistics, Dalla Lana School of Public Health (A.R.W.), the Division of Gastroenterology, Hepatology, and Nutrition (P.M.S.), the Divisions of Pediatric Emergency Medicine and Clinical Pharmacology and Toxicology (Y.F.), and the Division of Pediatric Emergency Medicine and Research Institute (S.S.), Hospital for Sick Children, University of Toronto, Toronto, the Division of Emergency Medicine, London Health Sciences Centre, Department of Pediatrics, Schulich School of Medicine and Dentistry, Western University, London, ON (N.P.), the Division of Pediatric Emergency Medicine, IWK Health Centre, Halifax, NS (K.H.), the Department of Pediatrics, Faculty of Medicine and Dentistry, Women and Children's Health Research Institute (B.E.L.) and the Provincial Laboratory for Public Health-Alberta Public Laboratories and Department of Laboratory Medicine and Pathology (X.-L.P., L.C.), University of Alberta, Edmonton - all in Canada; the Division of Pediatric Emergency Medicine, Washington University School of Medicine, St. Louis (D.S.); and Children's Minnesota and Department of Pediatrics, University of Minnesota Medical School, Minneapolis (M.G.).; Gorelick M; From the Sections of Pediatric Emergency Medicine and Gastroenterology, Alberta Children's Hospital, Alberta Children's Hospital Research Institute (S.B.F.), and the Section of Pediatric Emergency Medicine, Alberta Children's Hospital (S.W.-U., J.X.), Cumming School of Medicine, University of Calgary, Calgary, the Departments of Pediatrics and Emergency Medicine, Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa (K.J.F.), the Division of Pediatric Emergency Medicine, Department of Pediatrics, Centre Hospitalier Universitaire Sainte-Justine, Université de Montréal, Montreal (S.G.), Ontario Child Health Support Unit, SickKids Research Institute, the Division of Biostatistics, Dalla Lana School of Public Health (A.R.W.), the Division of Gastroenterology, Hepatology, and Nutrition (P.M.S.), the Divisions of Pediatric Emergency Medicine and Clinical Pharmacology and Toxicology (Y.F.), and the Division of Pediatric Emergency Medicine and Research Institute (S.S.), Hospital for Sick Children, University of Toronto, Toronto, the Division of Emergency Medicine, London Health Sciences Centre, Department of Pediatrics, Schulich School of Medicine and Dentistry, Western University, London, ON (N.P.), the Division of Pediatric Emergency Medicine, IWK Health Centre, Halifax, NS (K.H.), the Department of Pediatrics, Faculty of Medicine and Dentistry, Women and Children's Health Research Institute (B.E.L.) and the Provincial Laboratory for Public Health-Alberta Public Laboratories and Department of Laboratory Medicine and Pathology (X.-L.P., L.C.), University of Alberta, Edmonton - all in Canada; the Division of Pediatric Emergency Medicine, Washington University School of Medicine, St. Louis (D.S.); and Children's Minnesota and Department of Pediatrics, University of Minnesota Medical School, Minneapolis (M.G.).; Schuh S; From the Sections of Pediatric Emergency Medicine and Gastroenterology, Alberta Children's Hospital, Alberta Children's Hospital Research Institute (S.B.F.), and the Section of Pediatric Emergency Medicine, Alberta Children's Hospital (S.W.-U., J.X.), Cumming School of Medicine, University of Calgary, Calgary, the Departments of Pediatrics and Emergency Medicine, Children's Hospital of Eastern Ontario, University of Ottawa, Ottawa (K.J.F.), the Division of Pediatric Emergency Medicine, Department of Pediatrics, Centre Hospitalier Universitaire Sainte-Justine, Université de Montréal, Montreal (S.G.), Ontario Child Health Support Unit, SickKids Research Institute, the Division of Biostatistics, Dalla Lana School of Public Health (A.R.W.), the Division of Gastroenterology, Hepatology, and Nutrition (P.M.S.), the Divisions of Pediatric Emergency Medicine and Clinical Pharmacology and Toxicology (Y.F.), and the Division of Pediatric Emergency Medicine and Research Institute (S.S.), Hospital for Sick Children, University of Toronto, Toronto, the Division of Emergency Medicine, London Health Sciences Centre, Department of Pediatrics, Schulich School of Medicine and Dentistry, Western University, London, ON (N.P.), the Division of Pediatric Emergency Medicine, IWK Health Centre, Halifax, NS (K.H.), the Department of Pediatrics, Faculty of Medicine and Dentistry, Women and Children's Health Research Institute (B.E.L.) and the Provincial Laboratory for Public Health-Alberta Public Laboratories and Department of Laboratory Medicine and Pathology (X.-L.P., L.C.), University of Alberta, Edmonton - all in Canada; the Division of Pediatric Emergency Medicine, Washington University School of Medicine, St. Louis (D.S.); and Children's Minnesota and Department of Pediatrics, University of Minnesota Medical School, Minneapolis (M.G.).

Publisher: Massachusetts Medical Society Country of Publication: United States NLM ID: 0255562 Publication Model: Print Cited Medium: Internet ISSN: 1533-4406 (Electronic) Linking ISSN: 00284793 NLM ISO Abbreviation: N Engl J Med Subsets: MEDLINE

Freedman SB; Sections of Pediatric Emergency Medicine and Gastroenterology, Department of Pediatrics, Alberta Children's Hospital and Alberta Children's Hospital Research Institute and stephen.freedman@ahs.ca.; Soofi SB; Centre of Excellence in Women and Child Health, The Aga Khan University, Karachi, Pakistan.; Willan AR; Ontario Child Health Support Unit, SickKids Research Institute, Toronto, Ontario, Canada; and.; Williamson-Urquhart S; Section of Pediatric Emergency Medicine, Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.; Siddiqui E; Centre of Excellence in Women and Child Health, The Aga Khan University, Karachi, Pakistan.; Xie J; Section of Pediatric Emergency Medicine, Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.; Dawoud F; Section of Pediatric Emergency Medicine, Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.; Bhutta ZA; Centre of Excellence in Women and Child Health, The Aga Khan University, Karachi, Pakistan.; Centre for Global Child Health, The Hospital for Sick Children, Toronto, Ontario, Canada.

Publisher: American Academy of Pediatrics Country of Publication: United States NLM ID: 0376422 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1098-4275 (Electronic) Linking ISSN: 00314005 NLM ISO Abbreviation: Pediatrics Subsets: MEDLINE

Freedman SB; Section of Pediatric Emergency Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Section of Pediatric Gastroenterology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada; Department of Paediatrics, Alberta Children's Hospital, Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada. Electronic address: stephen.freedman@ahs.ca.; Soofi SB; Centre of Excellence in Women and Child Health, Aga Khan University, Karachi, Pakistan.; Willan AR; Ontario Child Health Support Unit, Sickkids Research Institute, Toronto, Ontario, Canada.; Williamson-Urquhart S; Section of Pediatric Emergency Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.; Ali N; Centre of Excellence in Women and Child Health, Aga Khan University, Karachi, Pakistan.; Xie J; Section of Pediatric Emergency Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.; Dawoud F; Section of Pediatric Emergency Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.; Bhutta ZA; Centre of Excellence in Women and Child Health, Aga Khan University, Karachi, Pakistan; Centre for Global Child Health, The Hospital for Sick Children, Toronto, Ontario, Canada.

Publisher: Mosby Country of Publication: United States NLM ID: 8002646 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1097-6760 (Electronic) Linking ISSN: 01960644 NLM ISO Abbreviation: Ann Emerg Med Subsets: MEDLINE

Freedman SB; From the Section of Pediatric Emergency Medicine and Gastroenterology, Department of Pediatrics.; Johnson DW; Section of Pediatric Emergency Medicine, Departments of Pediatrics and Physiology and Pharmacology.; Nettel-Aguirre A; Department of Pediatrics, Alberta Children's Hospital, Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.; Mikrogianakis A; From the Section of Pediatric Emergency Medicine and Gastroenterology, Department of Pediatrics.; Williamson-Urquhart S; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.; Monfries N; Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.; Cheng A; From the Section of Pediatric Emergency Medicine and Gastroenterology, Department of Pediatrics.

Publisher: Lippincott Williams & Wilkins Country of Publication: United States NLM ID: 8507560 Publication Model: Print Cited Medium: Internet ISSN: 1535-1815 (Electronic) Linking ISSN: 07495161 NLM ISO Abbreviation: Pediatr Emerg Care Subsets: MEDLINE

Alisic E; Monash Injury Research Institute, Monash University, Melbourne, Australia; Murdoch Childrens Research Institute, Melbourne, Australia. Electronic address: eva.alisic@monash.edu.; Hoysted C; School of Psychological Sciences, Monash University, Melbourne, Australia.; Kassam-Adams N; Children's Hospital of Philadelphia, Philadelphia, PA; University of Pennsylvania, Philadelphia, PA.; Landolt MA; Department of Psychosomatics and Psychiatry, University Children's Hospital Zurich, Zurich, Switzerland; Department of Child and Adolescent Health Psychology, Institute of Psychology, University of Zurich, Zurich, Switzerland.; Curtis S; Departments of Pediatrics and Emergency Medicine and Women and Children's Health Research Institute, University of Alberta, Edmonton, Alberta, Canada.; Kharbanda AB; Department of Pediatric Emergency Medicine, Children's Hospitals and Clinics of Minnesota, Minneapolis, MN.; Lyttle MD; Emergency Department, Bristol Royal Hospital for Children, Bristol, United Kingdom; Faculty of Health and Applied Science, University of the West of England, Bristol, United Kingdom.; Parri N; Department of Emergency Medicine and Trauma Center, Meyer University Children's Hospital, Florence, Italy.; Stanley R; Department of Emergency Medicine, University of Michigan, Ann Arbor, MI.; Babl FE; Royal Children's Hospital, Murdoch Childrens Research Institute and University of Melbourne, Melbourne, Australia.

Publisher: Mosby Country of Publication: United States NLM ID: 0375410 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1097-6833 (Electronic) Linking ISSN: 00223476 NLM ISO Abbreviation: J Pediatr Subsets: MEDLINE

Noreen, Sana; Owais Arshad; Zergham Mazhar; Shahzadi, Maryam; Umama Fatima; Amjad, Huma