1. From the Heart and Vascular Institute (D.H.K., Z.B.P., K.K., M.R., M.D., S.D.F.) and Imaging Institute (D.H.K., Z.B.P., M.D., S.D.F.), Cleveland Clinic, OH; Department of Family Medicine, University of Colorado, Denver, CO (L.A.); and Menzies Research Institute of Tasmania, Hobart, Australia (T.H.M.).