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Journal
- journal of obstetrics and gynaecology canada126
- obstetrics & gynecology80
- american journal of obstetrics and gynecology77
- journal of perinatal medicine54
- journal of maternal-fetal & neonatal medicine44
- american journal of obstetrics & gynecology38
- archives of gynecology and obstetrics27
- journal of maternal fetal neonatal medicine the official journal of the european association of perinatal medicine the federation of asia and oceania perinatal societies the international society of perinatal obstetricians21
- the journal of maternal-fetal & neonatal medicine21