1. Department of Medical Sciences, College of Life Sciences, University Of Leicester, Leicester, UK
2. Department of Medicine, School of Medicine, Queen’s University Belfast, Belfast, UK
3. Department of General Surgery, Junior Clinical fellow, Barts Health NHS Trust, London, UK
4. Faculty of Medicine, St George’s University of London, London, UK
5. Department of Cardiothoracic Surgery, Northern General Hospital, Sheffield, UK
6. Department of Cardiothoracic Surgery, Liverpool Heart & Chest Hospital, Liverpool, UK