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- journal of perinatal medicine31
- american journal of obstetrics and gynecology30
- american journal of obstetrics & gynecology9
- journal of maternal-fetal & neonatal medicine6
- obstetrics & gynecology5
- acta obstetricia et gynecologica scandinavica4
- american journal of perinatology4
- international journal of gynecology & obstetrics4
- neonatology today4