1. Senior Research Fellow in Cardiology & Cardiac Electrophysiology, St George’s University Hospitals NHS Foundation Trust, Blackshaw Road, London, London, UK
2. Research Practitioner, Royal Free London NHS Trust, Barnet Hospital, Wellhouse Lane, Wellhouse Lane, UK
3. Consultant in Cardiac Electrophysiology & Devices, St George’s University Hospitals NHS Foundation Trust, Blackshaw Road, London, UK
4. Consultant Physician & Rheumatologist, Honorary Clinical Professor, University College London, Royal Free London NHS Trust, Wellhouse Lane, UK