Search results for: Heping Zhang
American Journal of Obstetrics and Gynecology > 2017 > 217 > 2 > 191.e1-191.e19
American Journal of Obstetrics and Gynecology > 2017 > 216 > 5 > 493.e1-493.e13
American Journal of Obstetrics and Gynecology > 2016 > 214 > 3 > 376.e1-376.e8
American Journal of Obstetrics and Gynecology > 2015 > 213 > 3 > 429.e1-429.e9
American Journal of Obstetrics and Gynecology > 2015 > 212 > 4 > 487.e1-487.e11
American Journal of Obstetrics and Gynecology > 2014 > 211 > 6 > 678.e1-678.e12