Department of Urology;
Sir Run Run Shaw Hospital;
School of Medicine;
Zhejiang University;
Hangzhou 310016;
China;
Department of Urology;
Ruijin Hospital;
School of Medicine;
Shanghai Jiao Tong University;
Shanghai 200025;
China;
Children's Hospital of Los Angeles;
Los Angeles;
CA 90027;
USA;
Bacillus Calmette-Guérin(BCG) vaccine; Bladder neoplasms; Gene recombination; Interferon-alpha 2b;