1. Department of Urology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
2. Department of Urology, The Third Affiliated Hospital of Southern Medical University, Guangzhou 510500, China
3. Department of Geriatric Medicine, Shenzhen People’s Hospital (The Second Clinical Medical College, Jinan University, The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen 518020, China