1. Department of Gynaecology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, P.R. China
2. Department of Gynaecology, Gaomi Traditional Chinese Medicine Hospital, Gaomi, P.R. China
3. Center of Obstetrics and Gynecology, Peking University Shenzhen Hospital, Shenzhen, P.R. China
4. Department of Gynaecology, Shandong provincial hospital affiliated to Shandong first medical university, Jinan, China
5. Institute of Obstetrics and Gynecology, Shenzhen PKU-HKUST Medical Center, Shenzhen, P.R. China
6. Shenzhen Key Laboratory on Technology for Early Diagnosis of Major Gynecologic Diseases, Shenzhen, P.R. China