Birth, Volume 48, No. 1, Year 2021
PLoS Medicine, Volume 15, No. 1, Year 2018
Sexual and Reproductive Healthcare, Volume 31, Year 2022
BMC Pregnancy and Childbirth, Volume 15, Year 2015
Reproductive Health, Volume 11, No. 1, Year 2014
BJOG: An International Journal of Obstetrics and Gynaecology, Volume 112, No. 9, Year 2005