1. Medical College of Nanchang University, Nanchang, Jiangxi, P.R. China
2. Department of Gynaecology and Obstetrics, Jiangxi Maternal and Child Health Hospital, Nanchang, Jiangxi, P.R. China
3. Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, P.R. China