[1] University of Massachusetts,Division of Biostatistics & Epidemiology, Department of Public Health, School of Public Health & Health Sciences
[2] University of California San Diego,Department of Family and Preventive Medicine, School of Medicine
[3] University of Massachusetts Medical School,Division of Preventive and Behavioral Medicine, Department of Medicine
[4] University of Massachusetts,Department of Kinesiology, School of Public Health & Health Sciences
[5] University of Massachusetts Medical School,Departments of Obstetrics & Gynecology and Pediatrics
[6] Brigham and Women’s Hospital and Harvard Medical School,undefined
[7] Baystate Medical Center,undefined