[1] University of Maryland School of Medicine,Department of Pediatrics
[2] University of Massachusetts at Amherst,Department of Biostatistics and Epidemiology, School of Public Health and Health Sciences
[3] State University of New York at Buffalo,Department of Epidemiology, Roswell Park Cancer Institute
[4] New York State Department of Health,Bureau of Chronic Disease Epidemiology and Surveillance
[5] State University of New York at Buffalo,Department of Family Medicine