1. Department of Gynecologic Oncology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University.
Beijing Maternal and Child Health Care Hospital, Beijing, 100026, China
2. Department of Gynecology
and Obstetrics, Huairou Maternal and Child Health Care Hospital, Beijing Obstetrics and Gynecology
Hospital, Capital Medical University, Beijing, 101499, China
3. Department of Gynecology and Obstetrics,
Beijing Zhongguancun Hospital, Beijing, 100190, China