1. Office of Medical Student Research, Oklahoma State University Center for Health Sciences, Tulsa, Oklahoma
2. Sparrow Hospital, Department of Urology, Lansing, Michigan
3. Michigan State Urology, Michigan State University, East Lansing, Michigan
4. The Ottawa Hospital Research Institute, University of Ottawa, Ottawa, Ontario
5. Department of Psychiatry and Behavioral Sciences, Oklahoma State University Center for Health Sciences, Tulsa, Oklahoma