1. Farr Institute, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
2. Wessex Cardiothoracic Centre, University Hospital Southampton and Faculty of Medicine, University of Southampton, Southampton, UK
3. Department of Cardiology, University Hospital of Wales, Cardiff, UK
4. Department of Cardiology, The James Cook University Hospital, Middlesbrough, UK
5. Department of Cardiology, Queen Elizabeth Hospital, Birmingham, UK
6. Keele Cardiovascular Research Group, Institute for Applied Clinical Science and Centre for Prognosis Research, Institute of Primary Care and Health Sciences, University of Keele and Academic Department of Cardiology, Department of Cardiology, Royal Stoke Hospital, Stoke-on-Trent, UK
7. MRC Bioinformatics Centre, Leeds Institute of Cardiovascular and Metabolic Medicine, University of Leeds, Leeds, UK
8. Department of Cardiology, Sussex Cardiac Centre, Brighton and Sussex University Hospitals, Brighton, UK