Liping FengAssociate Professor of Obstetrics and Gynecology Zhiqing HuangAssistant Professor in Obstetrics and Gynecology Friederike Luking JayesAssistant Professor in Obstetrics and Gynecology Margeaux W MarbreyAssistant Professor in Obstetrics and Gynecology Susan Kay MurphyAssociate Professor in Obstetrics and Gynecology