[1] Huazhong Univ Sci & Technol, Union Hosp, Tongji Med Coll, Dept Urol, Wuhan, Peoples R China
[2] Univ Elect Sci & Technol China, Mianyang Cent Hosp, Sch Med, Dept Hepatobiliary Surg, Mianyang, Peoples R China
[3] Huazhong Univ Sci & Technol, Union Hosp, Tongji Med Coll, Dept Anesthesiol, Wuhan, Peoples R China
[4] Univ Elect Sci & Technol China, Mianyang Cent Hosp, Sch Med, Dept Urol, Mianyang, Peoples R China
[5] Univ Hong Kong, Li Ka Shing Fac Med, Sch Clin Med, Dept Pathol,Pok Fu Lam, Hong Kong, Peoples R China