Department of Gynaecology and 0bstetrics, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu 223300, China;
Department of Gynaecology and 0bstetrics, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu 223300, China;
Department of Gynaecology and 0bstetrics, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu 223300, China;
Department of Gynaecology and 0bstetrics, Huai'an First People's Hospital, Nanjing Medical University, Huai'an, Jiangsu 223300, China;