1. Department of Gynaecology, Guang’anmen Hospital of the Chinese Academy of Traditional Chinese Medicine, Beijing, China
2. Department of Radiology, Guang’anmen Hospital of the Chinese Academy of Traditional Chinese Medicine, Beijing, China
3. Department of Health Care, Guang’anmen Hospital of the Chinese Academy of Traditional Chinese Medicine, Beijing, China
4. Department of Obstetrics and Gynecology, Suzhou Integrated Traditional Chinese and Western Medicine Hospital, Suzhou, China