1. From the Institute for Health Research, Kaiser Permanente Colorado, Denver (E.B.S., E.A.B., J.F.S.); Department of Medicine, University of Colorado Denver (E.B.S.); Denver Health, Denver, CO (R.H., E.P.H.); Colorado Health Outcomes Program, University of Colorado Denver (B.L.B.); and Department of Family Medicine, University of Colorado Denver (E.A.B.).