1. Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology , Wuhan , China
2. Department of Urology, South China Hospital, Medical School, Shenzhen University , Shenzhen, 518116 , China
3. Department of Urology, Wuhan Union Jiangbei Hospital, Huazhong University of Science and Technology , Wuhan , China
4. Department of Gynecology and Obstetrics, Women and Children Hospital of Guangdong Province , Guangzhou 510080 , China
5. Urology Unit, La Nouvelle Polyclinique Centrale de Bujumbura , Bujumbura 378 , Burundi