[1] Soochow Univ, Affiliated Hosp 2, Dept Radiotherapy & Oncol, Suzhou, Peoples R China
[2] Nanjing Med Univ, Affiliated Suzhou Hosp, Dept Radiotherapy & Oncol, Suzhou, Peoples R China
[3] Soochow Univ, Affiliated Hosp 3, Dept Urol, Changzhou, Peoples R China