1. From the Department of Medicine, Denver Health Medical Center (F.A.M., E.P.H.), and Department of Medicine, University of Colorado Health Sciences Center (F.A.M., E.P.H.), Denver, Colo; Colorado Foundation for Medical Care (F.A.M., E.P.H., H.M.K.) and Colorado Health Outcomes Program (F.A.M.), Aurora, Colo; and Department of Medicine (Y.W., S.E.I., J.M.F., H.M.K.), Yale University School of Medicine, and Center for Outcomes Research and Evaluation (H.M.K.), Yale-New Haven Hospital, New Haven, Conn.