[1] Zhejiang Univ, Sir Run Run Shaw Hosp, Coll Med, Dept Internal Neurol, Hangzhou 310016, Zhejiang, Peoples R China
[2] Hangzhou Binjiang Hosp, Dept Med Oncol, Hangzhou 310052, Zhejiang, Peoples R China
[3] Zhejiang Univ, Sir Run Run Shaw Hosp, Coll Med, Dept Med Oncol, Hangzhou 310016, Zhejiang, Peoples R China