Affiliation: | 1. Department of Urology, Peking University First Hospital, Institute of Urology, Peking University, National Urological Cancer Center, Beijing, People''s Republic of China;2. Department of Urology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, People''s Republic of China;3. Department of Central Laboratory, Peking University First Hospital, Beijing, People''s Republic of China |