1. Department of Urology, Peking University Shenzhen Hospital, Shenzhen Peking University, The Hong Kong University of Science and Technology Medical Center, Shenzhen 518036, China
2. College of Life Sciences, Institute of Reproductive Sciences, Qingdao Agricultural University, Qingdao 266109, China
3. Department of Urology, Zaozhuang Hospital of Zaozhuang Mining Group, Zaozhuang 277100, China
4. Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Shenzhen PKU-HKUST Medical Center, Shenzhen 518036, China
5. Department of Urology, Department of Andrology, Department of Human Sperm Bank, Peking University Third Hospital, Beijing 100191, China