1. Department of Urology, Mayo Clinic, Rochester, Minnesota
2. Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Rochester, Minnesota
3. Division of Health Care Delivery Research, Mayo Clinic, Rochester, Minnesota
4. Department of Urology, Vanderbilt University Medical Center, Nashville, Tennessee
5. Geriatric Research Education and Clinical Center, Veterans Affairs Tennessee Valley Healthcare System, Nashville, Tennessee
6. Department of Health Policy, Vanderbilt University Medical Center, Nashville, Tennessee
7. Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee
8. Department of General Internal Medicine, Mayo Clinic, Scottsdale, Arizona