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Journal
- british journal of obstetrics and gynaecology22
- american journal of obstetrics and gynecology19
- fetal diagnosis and therapy14
- cochrane database of systematic reviews12
- obstetrics and gynecology12
- journal of pediatric surgery9
- archives of gynecology and obstetrics8
- european journal of obstetrics gynecology and reproductive biology6
- acta obstetricia et gynecologica scandinavica5