American Journal of Obstetrics and Gynecology
American Journal of Obstetrics and Gynecology > 2018 > 218 > 1 > 130.e1-130.e13
American Journal of Obstetrics and Gynecology > 2018 > 218 > 2(S) > S818-S828
American Journal of Obstetrics and Gynecology > 2018 > 218 > 1 > 130.e1-130.e13
American Journal of Obstetrics and Gynecology > 2018 > 218 > 2(S) > S818-S828