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Journal
- american journal of obstetrics and gynecology13
- midwifery8
- bmc pregnancy and childbirth4
- bmj open3
- journal of obstetrics and gynaecology canada3
- journal of obstetrics and gynaecology canada : jogc = journal d'obstetrique et gynecologie du canada : jogc3
- plos one3
- health expectations2
- obstetrics & gynecology2