1. Department of Cardiology; Royal Brompton & Harefield NHS Foundation Trust; London UK
2. Royal Brompton and Harefield NHS Foundation Trust; London UK
3. London North West University Healthcare NHS Trust; London UK
4. Department of Internal Medicine; The Royal Wolverhampton Hospitals NHS Trust; Wolverhampton UK
5. Department of Cardiology; Royal Free Hospital, Royal Free London NHS Foundation Trust; London UK
6. Institute of Health Informatics Research; University College London; London UK
7. Barts Heart Centre; St Bartholomew's Hospital, Barts Health NHS Trust; London UK