1. Department of Urology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310009, P.R. China
2. Department of Medical Oncology, Tongde Hospital of Zhejiang Province, Hangzhou, Zhejiang 310012, P.R. China
3. Department of General Surgery, Tongde Hospital of Zhejiang Province, Hangzhou, Zhejiang 310012, P.R. China