1. From the Department of Medicine, Duke University Medical Center (J.E.T., R.A.H., J.A.M., D.M.J., K.N.S., R.M.C.), Durham, NC; the Cleveland Clinic Foundation (K.K.-M., S.G.E., E.J.T.), Cleveland, Ohio; Baylor College of Medicine (N.S.K.), Houston, Tex; Christ Hospital (D.J.K.), Cincinnati, Ohio; Methodist Hospital (M.J.M.), Indianapolis, Ind; Mother Francis Hospital (F.I.N.), Tyler, Tex; Saint Vincent Hospital (J.E.S.), Erie, Pa; Lancaster General Hospital (S.J.W.), Lancaster, Pa; and COR...