1. From the Department of Cardiovascular Medicine (Z.A.A., N.J.A., T.B., S.M., K.M.C.), University of Oxford, John Radcliffe Hospital, UK; Brivant Ltd (H.L., J.G.), Oranmore, Galway, Ireland; the Cardiovascular Research Group (N.A., M.W.), University of Sheffield, Northern General Hospital, UK; Sir William Dunn School of Pathology (D.R.G.), University of Oxford, UK; and the Cardiovascular Division (Y.H.), King’s College, London, UK.