1. Sophie Davis School of Biomedical Education of the City College of New York, Department of Community Health and Social Medicine, New York, New York.
2. Department of Epidemiology, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, New York.
3. Department of Family and Social Medicine, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, New York.
4. Department of Medicine, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, New York.