1. Department of Population Health, New York University School of Medicine, New York, New York.
2. Division of Epidemiology, New York City Department of Health and Mental Hygiene, Long Island City, New York.
3. Division of Health Care Access and Improvement, New York City Department of Health and Mental Hygiene, Primary Care Information Project, Long Island City, New York.
4. Epidemiology and Biostatistics Program, CUNY School of Public Health at Hunter College, New York, New York.
5. Special Projects Unit, Bureau of Epidemiology Services, New York City Department of Health and Mental Hygiene, Long Island City, New York.