1. West China Hospital, West China School of Clinical Medicine, Sichuan University, Chengdu 610041, China
2. West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610041, China
3. Key Laboratory of Obstetric, Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu 610041, China
4. Center of Scientific Research, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Zhejiang 325027, China
5. Department of Pediatric Urology, West China Hospital, Sichuan University, Chengdu 610041, China