1. Department of Medicine (L.B.R.), Perelman School of Medicine, University of Pennsylvania, Philadelphia.
2. Cardiology Division (M.J.F., S.J.S.), Department of Medicine, Feinberg School of Medicine, Northwestern University.
3. Infectious Diseases Division (C.J.A.), Department of Medicine, Feinberg School of Medicine, Northwestern University.
4. Renal-Electrolyte and Hypertension Division (R.R.T., J.B.C.), Perelman School of Medicine, University of Pennsylvania, Philadelphia.
5. Department of Population Health Sciences, University of Utah, School of Medicine, Salt Lake City (A.P.B.).
6. Department of Biostatistics, Epidemiology, and Informatics (J.B.C.), Perelman School of Medicine, University of Pennsylvania, Philadelphia.
7. Department of Medicine, Corporal Michael J. Crescenz VA Medical Center, Philadelphia, PA (J.B.C.).