1. Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, PR China
2. Queen Mary College of Nanchang University, Nanchang, Jiangxi, PR China
3. First Clinical College of Nanchang University, Nanchang, Jiangxi, PR China
4. The Key Laboratory of Reproductive Physiology and Pathology of Jiangxi Province, Nanchang, Jiangxi, PR China