1. From the Department of Medicine, Division of General Internal Medicine, University of California San Francisco (R.H.); Health Care and Prevention MD-MPH Program (A.J.V., S.L.S.) and Gillings School of Global Public Health (A.J.V., S.L.S.), University of North Carolina at Chapel Hill School of Medicine; and Department of Family Medicine (A.J.V.) and Department of Medicine, Division of General Internal Medicine and Clinical Epidemiology (S.L.S., M.P.P.), University of North Carolina at Chapel Hill.