1. Department of Medicine, University of Cambridge School of Clinical Medicine, Cambridge CB2 0SP, UK
2. Department of Medicine, St George’s Medical School, Nicosia, 2408, Cyprus
3. Departments of Medicine and Cardiology, Wexham Park Hospital, Frimley Health NHS Foundation Trust, Berkshire, SL2 4HL, UK
4. Departments of Medicine and Clinical Cardiology, University of Cyprus Medical School, Nicosia, 2029, Cyprus