부산대학교 도서관

The article discusses several studies on labor and birth published in different journals. These include one on rates of very preterm birth in Europe and neonatal mortality rates by D. Field and colleagues, another on risk factors for preterm birth in opiate-addicted gravid women in a methadone-treatment program, by C. Almario and colleagues, and a study on the role of maternal race and ethnicity and fetal sex in the prematurity in twins, by T. L Dailey and colleagues.