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- ultrasound in obstetrics & gynecology110
- journal of maternal-fetal & neonatal medicine92
- american journal of obstetrics & gynecology82
- acta obstetricia et gynecologica scandinavica71
- bjog: an international journal of obstetrics & gynaecology42
- bmc pregnancy & childbirth40
- journal of obstetrics & gynaecology36
- american journal of perinatology32
- obstetrics & gynecology31