单位:Department of Gynaecology, Xingtai People’s Hospital, Xingtai, Hebei 054000, People’s Republic of China; 2Department of Obstetrics and Gynecology, Xingtai People’s Hospital, Xingtai, Hebei 054000, People’s Republic of China
Correspondence: Yue Ren
Department of Gynaecology, Xingtai People’s Hospital, Xingtai, Hebei 054000, People’s Republic of China