1 From the Departments of Pediatrics and of Epidemiology, Biostatistics and Occupational Health, McGill University Faculty of Medicine, Montreal, Canada (MSK); the Obesity Prevention Program, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA (EO); the School of Social and Community Medicine, University of Bristol, Bristol, United Kingdom (RMM); and the National Institute for Health Research, Bristol Biomedical Research Unit in Nutrition, Bristol, United Kingdom (RMM). michael.kramer@mcgill.ca.
2 From the Departments of Pediatrics and of Epidemiology, Biostatistics and Occupational Health, McGill University Faculty of Medicine, Montreal, Canada (MSK); the Obesity Prevention Program, Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, MA (EO); the School of Social and Community Medicine, University of Bristol, Bristol, United Kingdom (RMM); and the National Institute for Health Research, Bristol Biomedical Research Unit in Nutrition, Bristol, United Kingdom (RMM).