1. Knuppe Molecular Urology Laboratory, Department of Urology, School of Medicine, University of California, San Francisco, California.
2. Andrology Center, Peking University First Hospital, Beijing, China.
3. Department of Urology, Ninth People's Hospital Affiliated to Medical College of Shanghai Jiao-Tong University, Shanghai, China.
4. Department of Urology, First Affiliated Hospital of Sun Yet-Sen University, Guangzhou, China.
5. Division of Urology, Department of Surgery, Chang Gung Memorial Hospital, Chia-Yi, Taiwan, China.