1. Department of Cell Biology, School of Life Sciences, Central South University, Changsha, Republic of China.
2. Peking University China-Japan Friendship School of Clinical Medicine, Beijing, Republic of China.
3. Departments of Reproductive Genetics, HeBei General Hospital, Shijiazhuang, Republic of China.
4. Department of Anesthesiology, The Second Xiangya Hospital, Central South University, Changsha, Republic of China.