1. From the Departments of Cardiovascular Medicine (C.A., C. Shirodaria, P.L., T.V.-A., C.C., R.P., C.R., K.M.C.) and Physiology, Anatomy, and Genetics (H.R.), University of Oxford, Oxford, UK; Department of Nutrition, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway (O.A.B., H.R.); and Department of Cardiology, Athens University Medical School, Athens, Greece (C.A., D.T., C. Stefanadis).