1. From the Massachusetts General Hospital Diabetes Center and Harvard Medical School, Boston, MA (LMD, DMN, and DJW); the George Washington University Biostatistics Center, Rockville, MD (JML and PAC); the Harvard School of Public Health, Boston, MA (FBH); the Mayo Clinic, Rochester, MN (GKZ); and the Department of Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY (