1. Division of Preventive Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, Massachusetts
2. Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
3. Department of Kinesiology and Public Health, California Polytechnic State University, San Luis Obispo
4. Metabolic Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland