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- american journal of obstetrics & gynecology944
- bjog: an international journal of obstetrics & gynaecology804
- journal of maternal-fetal & neonatal medicine762
- bmc pregnancy & childbirth586
- acta obstetricia et gynecologica scandinavica451
- international journal of gynecology & obstetrics451
- ultrasound in obstetrics & gynecology414
- archives of gynecology & obstetrics389
- journal of obstetrics & gynaecology376