Institution: | 1. School of Public Health, Nanjing Medical University, Nanjing 211166, PR China;2. Department of Urology, Huai''an Hospital Affiliated with Xuzhou Medical University, Huai''an 223002, PR China;3. Department of Urology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, PR China;4. Department of Urology, The First People''s Hospital of Lianyungang, Lianyungang 222002, PR China |