1. Department of Surgery (Urology); University of Utah; Salt Lake City Utah
2. Department of Urology; University of Michigan; Ann Arbor Michigan
3. Department of Urology; University of Minnesota; Minneapolis Minnesota
4. Department of Internal Medicine; University of Utah Division of Epidemiology and Biostatistics; Salt Lake City Utah
5. Department of Physical Medicine and Rehabilitation; University of Utah; Salt Lake City Utah
6. Department of Physical Medicine and Rehabilitation; Salt Lake City Veterans Medical Center; Salt Lake City Utah
7. Department of Surgery; University of Western Ontario; London Ontario Canada