1. Department of Community Health and Social Medicine, School of Medicine, The City University of New York, New York
2. School of Social Welfare, Stony Brook University, New York, New York
3. Department of Epidemiology and Biostatistics, Graduate School of Public Health and Health Policy, The City University of New York
4. Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, New York