1. Reproductive Medical Center, and The First Affiliated Hospital, School of Medicine, Xiamen University, Fujian, P.R. China.
2. The Key Laboratory of Research and Diagnosis of Gynecological Diseases of Xiamen and Department of Obstetrics and Gynecology, The First Affiliated Hospital, School of Medicine, Xiamen University, Fujian, P.R. China.
3. School of Life Sciences, Xiamen University, Fujian, P.R. China.