1. Department of Gynaecological Oncology, Sun Yat‐sen Memorial Hospital Sun Yat‐sen University Guangzhou China
2. Clinical Research Design Division, Sun Yat‐sen Memorial Hospital Sun Yat‐sen University Guangzhou China
3. Department of Gynaecology and Obstetrics, Qilu Hospital (Qingdao), Cheeloo College of Medicine Shandong University Qingdao China