1. Department of Urology, School of Medicine, University of Washington, Seattle, Washington
2. San Francisco Coordinating Center, California Pacific Medical Center Research Institute, San Francisco, California
3. Department of Epidemiology, University of Washington, Seattle, Washington
4. Department of Urology, University of Texas Health Science Center, San Antonio, Texas
5. Division of Preventive Medicine, School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama
6. Department of Epidemiology, University of Iowa, Iowa City, Iowa
7. Department of Urology, University of California-San Francisco, San Francisco, California
8. Department of Social and Preventive Medicine, University of Buffalo, Buffalo, New York
9. Department of Medicine, The Ohio State University, Columbus, Ohio
10. Department of Obstetrics and Gynecology, University of Miami, Miami, Florida