1. Department of Urology, People’s Hospital of Putuo, Shanghai 200060, China
2. Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing 210009, China
3. Department of Nosocomial Infection, Affiliated Zhongda Hospital of Southeast University, Nanjing 210009, China
4. Department of Urology, The People’s Hospital of Jinhu, Huaian 211600, Jiangsu Province, China