1 Department of Cardiology, Barts Heart Centre, Barts Health NHS Trust, London, UK.
2 NIHR Biomedical Research Unit, William Harvey Research Institute, Queen Mary University of London, London, UK.
3 Department of Cardiology, Newham University Hospital, Glen Road, London E13 8SL, UK.
4 Department of Cardiovascular Diseases, Mayo Clinic, Rochester, MN 55902, USA.
5 Department of Cardiac Electrophysiology, Cardiovascular Division, Hospital of the University of Pennsylvania, Philadelphia, PA, USA.
6 Department of Cardiology, WellSpan Center for Inherited Cardiovascular Diseases, WellSpan Health, York, PA, USA.
7 Department of Neuroscience, Imaging and Clinical Sciences, Institute of Advanced Biomedical Technologies, "G.d'Annunzio" University, 66100 Chieti, Italy.
8 Department of Clinical Sciences, Lund University, Jan Waldenströms gata 35, 205 02 Malmö, Sweden.
9 Department of Cardiology, Casa di Cura Villa Serena, Città Sant'Angelo, Pescara, Italy.
10 Cranham Village Surgery, Essex, UK.
11 Institute of Cardiovascular Sciences, University College London, London, UK.