1. Department of Health Policy and Management, University of Arkansas for Medical Sciences, Little Rock
2. Winthrop P. Rockefeller Cancer Institute, University of Arkansas for Medical Sciences, Little Rock
3. Office of Research, Denver Health and Hospital Authority, Denver, Colorado
4. Department of Medicine, University of Colorado-Anschutz Medical Campus, Aurora
5. Department of Health and Behavioral Sciences, University of Colorado Denver, Denver
6. Department of Health Systems, Management, and Policy, Colorado School of Public Health, University of Colorado-Anschutz Medical Campus, Aurora