1. From the Department of Cardiology, Royal Prince Alfred Hospital, New South Wales, Australia (B.G.); Sydney Medical School, University of Sydney, Australia (B.G.), Agnes Ginges Centre for Molecular Cardiology, Centenary Institute, New South Wales, Australia (B.G.); Cardiology Clinical Academic Group, St George’s University of London, United Kingdom (E.R.B.); and St George’s University Hospitals NHS Foundation Trust, London, United Kingdom (E.R.B.).