1. Department of Urology, Fuzhou General Hospital; Fujian Medical University; Fuzhou Fujian 350025 People's Republic of China
2. Department of Presbyatrics, Fuzhou General Hospital; Fujian Medical University; Fuzhou Fujian 350025 People's Republic of China
3. Department of Urology, Fuzhou Dongfang Hospital; Xiamen University; Xiamen Fujian 361005 People's Republic of China