[1] Wuhan Univ, Zhongnan Hosp, Dept Urol, Wuhan 430071, Peoples R China
[2] Wuhan Univ, Ctr Evidence Based Med, Wuhan, Peoples R China
[3] Hubei Univ Med, Taihe Hosp, Ctr Evidence based Med & Clin Res, Shiyan, Peoples R China
[4] IRCCS Ist Ric Farmacol Mario Negri, Dept Epidemiol, Via G La Masa 19, I-20156 Milan, Italy
[5] Vanderbilt Epidemiol Ctr, Dept Med, Nashville, TN USA
[6] Vanderbilt Ingram Canc Ctr, Nashville, TN USA
[7] French Natl Ctr Sci Res, Inst Curie, UMR 144, F-75248 Paris, France
[8] Wuhan Univ, Sch Publ Hlth, Dept Epidemiol & biostatist, Wuhan, Peoples R China
[9] Wuhan Univ, Global Hlth Inst, Wuhan, Peoples R China
[10] Sichuan Univ, West China Hosp, Chinese Evidence Based Med Ctr, Chinese Cochrane Ctr, Chengdu 610041, Peoples R China