1. Department of Hepatobiliary Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
2. Department of Dermatology, Chongqing Traditional Chinese Medicine Hospital, Chongqing 400011, P.R. China
3. Department of Urology Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China
4. Department of Medical Affairs, Chongqing Traditional Chinese Medicine Hospital, Chongqing 400011, P.R. China