Norwich Medical School, University of East Anglia, Norwich, UK. Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, UK. Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK. University of Bristol, Bristol, UK. Cardiothoracic Imaging Unit, Hospital San Juan de Dios, Ressalta, HT Medica, Cordoba, Spain. Norfolk and Norwich University Hospital, Norwich, UK. Cardiology Department, Radboudumc, Nijmegen, The Netherlands. Norwich Medical School, University of East Anglia, Norwich, UK. p.garg@sheffield.ac.uk. Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield, Sheffield, UK. p.garg@sheffield.ac.uk. Norfolk and Norwich University Hospital, Norwich, UK. p.garg@sheffield.ac.uk.