1. Department of Obstetrics and Gynaecology Qilu Hospital of Shandong University Jinan China
2. Department of Gynaecological Oncology, Women's Hospital, School of Medicine Zhejiang University Hangzhou China
3. Department of Obstetrics and Gynaecology, Tongji Hospital, Tongji Medical College Huazhong University of Science and Technology Wuhan China
4. Department of Obstetrics and Gynaecology the Affiliated Hospital of Qingdao University Qingdao China
5. Department of Obstetrics and Gynaecology Peking University People's Hospital Beijing China
6. Key Laboratory of Gynaecological Oncology Qilu Hospital of Shandong University Jinan China