1. Global Health Leadership Initiative, Yale School of Public Health , New Haven, Connecticut , USA
2. Yale School of Management , New Haven, Connecticut , USA
3. Division of Health Policy and Management, School of Public Health, University of California, Berkeley , Berkeley, California , USA
4. Scripps Gerontology Center and Department of Sociology and Gerontology, Miami University , Oxford, Ohio , USA
5. USAging , Washington, District of Columbia , USA