1. Vanderbilt Bill Wilkerson Center, Department of Otolaryngology, Vanderbilt University Medical Center, Nashville, Tennessee
2. Vanderbilt Evidence-Based Practice Center, Vanderbilt University Medical Center, Nashville, Tennessee3Department of Health Policy, Vanderbilt University Medical Center, Nashville, Tennessee
3. Department of Health Policy, Vanderbilt University Medical Center, Nashville, Tennessee4Department of Urology, Vanderbilt University Medical Center, Nashville, Tennessee5Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee6Center for Surgical Quality and Outcomes Research, Vanderbilt University Medical Center, Nashville, Tennessee7Geriatric Research and Education Coordination Center, Veteran’s Administration Tennessee Valley Health System, Nashville, Tennessee
4. Department of Surgery, Vanderbilt University Medical Center, Nashville, Tennessee9Department of Biostatistics, Vanderbilt University Medical Center, Nashville, Tennessee
5. Division of Otolaryngology, Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison