Department of Urology;
Fudan University Shanghai Cancer Center;
270 Dong'an Road;
Shanghai 200032;
China;
Department of Oncology;
Shanghai Medical College;
Fudan University;
Shanghai 200032;
China;
Department of Urology;
Shanghai Ninth People's Hospital;
Shanghai Jiaotong University School of Medicine;
Shanghai 200011;
China;
Metastatic castration-resistant prostate cancer; PSA decline; PSA velocity; Overall survival; Time to PSA progression;