[Ren, Yi-Xin; Ding, Ping; Yan, Yong-Li; Rao, Jian-Ming; Yang, Jing-Hua; He, Jiang] Hunan Tradit Chinese Med Univ, Dept Urol, Hunan Prov Peoples Hosp 2, Changsha 410007, Hunan, Peoples R China.
[Xiao, Heng-Jun] Sun Yat Sen Univ, Affiliated Hosp 3, Dept Urol, Guangzhou 510630, Guangdong, Peoples R China.
[Yang, Jin-Rui; Yang, JR] Cent S Univ, Dept Urol, Xiangya Hosp 2, Changsha 410011, Hunan, Peoples R China.