1. Department of Health Management and Policy, University of Michigan, Ann Arbor, MI, USA
2. European Observatory on Health Systems and Policies, Brussels, Belgium
3. School of Business Administration, Getulio Vargas Foundation, Sao Paulo, Brazil
4. Department of Kinesiology and Community Health, University of Illinois Urbana-Champaign, Champaign, IL, USA
5. Department of Health Behavior and Health Education, University of Michigan, Ann Arbor, MI, USA