1. Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
2. Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
3. Department of Dermatology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, P.R. China