1. Medical Student in the Section of Vascular Surgery, Imperial College London, Charing Cross Hospital, London W6 8RF
2. Specialty Registrar in Vascular Surgery in the Section of Vascular Surgery, Imperial College Healthcare NHS Trust, London and Honorary Clinical Lecturer, Imperial College London, London
3. Professor of Vascular Surgery in the Section of Vascular Surgery, Imperial College London, London and Honorary Consultant Surgeon, Imperial College Healthcare NHS Trust, London
4. Academic Foundation Doctor in the Section of Vascular Surgery, Imperial College London, London