1. Department of Social & Behavioral Sciences, School of Public Health, Yale University , New Haven, Connecticut , USA
2. Institute for Community Care and Health Equity, Chung-Ang University , Seoul , Republic of South Korea
3. Cushing/Whitney Medical Library, Department of Environmental Health Sciences, School of Public Health, Yale University , New Haven, Connecticut , USA
4. Department of Chronic Disease Epidemiology, School of Public Health, Yale University , New Haven, Connecticut , USA
5. Department of Psychology, Yale University , New Haven, Connecticut , USA