1. Department of Urology, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Hunan Cancer Hospital, Changsha, PR China
2. Key Laboratory of Human Stem Cells and Reproductive of the Ministry of Health, Institute of Reproductive & Stem Cell Engineering, School of Basic Medical Science, Central South University, Changsha, PR China
3. Department of Scientific Research, Reproductive & Genetic Hospital of CITIC-Xiangya, Changsha, PR China