Southeast University, Nanjing, China, Zhongda Hospital, Southeast University, Nanjing, China, Department of Gynecological Oncology, Tumor Hospital Affiliated to Nantong University, Nantong, China, Department of Epidemiology and Biostatistics, School of Public health, Southeast University, Nanjing, China, Jiangsu Cancer Hopital, Nanjing, China, Department of Obstetrics and Gynaecology, Xuzhou Central Hospital, Xuzhou, China, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China, The First Peoples Hospital of Changzhou, Changzhou, China, Department of Obstetrics and Gynecology, The Yancheng Clinical College of Xuzhou Medical University, The First people's Hospital of Yancheng, Yancheng, China, Huai'an First People's Hospital, Huai'an, China, Department of Gynecology,Affiliated Hospital of Jiangnan University, Wuxi, China, Department of Gynecological Oncology, Qingdao Central Hospital, The Second Affiliated Hospital of Medical College of Qingdao University, Qingdao, China, Department of Gynecology,Lianyungang First People's Hospital, Lianyungang, China, Ovarian Cancer Program, Department of Gynecologic Oncology, Zhongshan Hospital, Fudan University, Shanghai, ChinaOvarian Cancer Program, Department of Gynecologic Oncology, Zhongshan Hospital, Fudan University, Shanghai, China, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China, Gynecology Department, Jiangsu Province Hospital of Chinese Medicine, Nanjing, China, Department of Epidemiology and Biostatistics, School of Public health, Southeast University, Nanjing, -, China, Department of Obstetrics and Gynaecology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, China, China