[Wei, Menghong; Zhang, Xiansheng; Wang, Ming; Xue, Yan] Anhui Med Univ, Affiliated Hosp 1, Dept Urol, 218 Jixi Rd, Hefei 230022, Anhui, Peoples R China.
[Xue, Yan] Cent China Normal Univ, Sch Educ, Wuhan, Peoples R China.
[Wei, Menghong] Anhui Med Univ, Affiliated Hosp 1, Dept Hematol, Hefei, Anhui, Peoples R China.
[Jiang, Hui] Peking Univ Third Hosp, Dept Androl, Beijing, Peoples R China.