1 Annals of Internal Medicine, Philadelphia, Pennsylvania, and Departments of Epidemiology and Medicine, and Welch Center for Prevention, Epidemiology, and Clinical Research, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland (E.G.).
2 Annals of Internal Medicine, Philadelphia, Pennsylvania, and Department of Epidemiology and Population Health and Department of Medicine, Stanford University School of Medicine, Stanford, California (S.N.G.).
3 Annals of Internal Medicine and Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania (A.R.L., A.J.S.).
4 Annals of Internal Medicine, Philadelphia, Pennsylvania (C.L.).