1. Department of Cardiology, Royal Free Hospital, London, UK
2. Department of Cardiology, St. Bartholomew's Hospital, Barts Health NHS Trust, London, UK
3. Department of Internal Medicine, Office of Global Health, Yale University School of Medicine, New Haven, Connecticut, USA
4. Department of Cardiology, Wexham Park Hospital, Frimley Health NHS Trust, Slough, UK
5. Medical School, University of Cyprus, Nicosia, Cyprus