1. Keith J. Mueller ( ) is a professor in the Department of Health Management and Policy, College of Public Health, University of Iowa, in Iowa City.
2. Andrew J. Potter is a PhD student in the Department of Health Management and Policy, College of Public Health, University of Iowa.
3. A. Clinton MacKinney is a clinical assistant professor in the Department of Health Management and Policy, College of Public Health, University of Iowa.
4. Marcia M. Ward is a professor in the Department of Health Management and Policy, College of Public Health, University of Iowa.