1. From Departments of Cardiology and Cardiovascular Medicine, University of Oxford Centre for Clinical Magnetic Resonance Research, John Radcliffe Hospital, Oxford, UK (S.G.M., J.d’A., J.M.F., B.P., T.D.K., S.N.); Waitemata Health and the University of Auckland, New Zealand (J.P.C.); Multidisciplinary Cardiovascular Research Centre and Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, UK (L.E.D., J.P.G.); and CMR Unit, Royal Brompton Hospital and the National Heart and...