Affiliation: | 1. Department of Health Management and Policy, University of Iowa, Iowa City, IA;2. Department of Economics, University of Iowa, Iowa City, IA;3. Department of Preventive and Community Dentistry, University of Iowa, Iowa City, IA;4. Public Policy Center, University of Iowa, Iowa City, IA;5. National Bureau of Economic Research, Cambridge, MA;6. Department of Oral Health Sciences, University of Washington, Seattle, WA |