1. Loyola University Medical Center, Maywood, Illinois
2. Stanford University School of Medicine, Stanford, California
3. University of California, San Diego, La Jolla California
4. University of Washington, Seattle, Washington
5. William Beaumont Hospital, Royal Oak, Michigan
6. University of Maryland, Baltimore, Maryland
7. Queens University, Kingston, Ontario, Canada
8. University of Pennsylvania Health System, Philadelphia, Pennsylvania
9. University of Iowa Hospitals and Clinic, Iowa City, Iowa
10. Henry Ford Hospital, Detroit, Michigan
11. University of Rochester Medical Center, Rochester, New York
12. Massage Therapy of Oak Park, Oak Park, Illinois
13. Center for Clinical Epidemiology & Biostatistics, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania
14. Department of Surgery-Section of Urology, Yale University, New Haven, Connecticut
15. National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland