1. Department of Gynecology and Obstetrics, Beijing Jishuitan Hospital, Capital Medical University, Beijing 102208, P.R. China
2. Department of Dermatology, The First Hospital of Hebei Medical University, Candidate Branch of National Clinical Research Center for Skin Diseases, Hebei Provincial Innovation Center of Dermatology and Medical Cosmetology Technology, Shijiazhuang, Hebei 050030, P.R. China
3. Department of Obstetrics and Gynecology, Peking University International Hospital, Beijing 102206, P.R. China; 4Jiaen Genetics Laboratory, Beijing Jiaen Hospital, Beijing 100191, P.R. China
4. Jiaen Genetics Laboratory, Beijing Jiaen Hospital, Beijing 100191, P.R. China