1. Department of Infertility and Sexual Medicine; The Third Affiliated Hospital of Sun Yat-Sen University; Guangzhou China
2. School of Information and Optoelectronic Science and Engineering; South China Normal University; Guangzhou Guangdong China
3. Center of Reproductive Medicine; The First People's Hospital of Yunnan Province; Kunming China
4. Department of Urology; Tongji Hospital; Tongji Medical College; Huazhong University of Science and Technology; Wuhan China
5. Department of Urology; The Third Affiliated Hospital of Sun Yat-Sen University; Guangzhou China