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- bmc pregnancy and childbirth37
- journal of maternal-fetal & neonatal medicine36
- journal of clinical medicine26
- acta obstetricia et gynecologica scandinavica22
- bmc pregnancy & childbirth22
- 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 obstetricians15
- ultrasound in obstetrics & gynecology13
- european journal of obstetrics & gynecology & reproductive biology12
- frontiers in medicine11