Cmar_a_199659 6511..6519

1Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing 210011, People’s Republic of China; 2Department of Obstetrics and Gynecology, The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing 210003, People’s Republic of China; 3Department of Obstetrics and Gynecology, Nanjing Lishui People’s Hospital, Nanjing 211200, People’s Republic of China; 4Department of Obstetrics and Gynecology, Huaian Maternal and Child Health Care Hospital, Huaian 223002, People’s Republic of China; 5Department of Clinical Research Center, The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing 210003, People’s Republic of China; 6Department of Gynecologic Oncology, Jiangsu Cancer Hospital, Nanjing 210009, People’s Republic of China