1. Cardiovascular Clinical Academic Group, Molecular and Clinical Sciences Institute, St George’s, University of London and St George’s University Hospitals NHS Foundation Trust, London, UK; Department of Cardiology, Ashford and St Peter’s NHS Foundation Trust, Chertsey, Surrey, UK
2. Cardiovascular Clinical Academic Group, Molecular and Clinical Sciences Institute, St George’s, University of London and St George’s University Hospitals NHS Foundation Trust, London, UK