1. Hull York Medical School, University of York, York, UK
2. East Lancashire Teaching Hospitals NHS Trust, Blackburn, UK
3. School of Medicine, St George's University of London, London, UK
4. School of Medicine, University of Jordan, Amman, Jordan
5. Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
6. Neurovascular Research Laboratory, Faculty of Life Sciences and Education, University of South Wales, Pontypridd, UK
7. Department of Vascular Surgery, University Hospital of Wales, Cardiff, UK
8. Vascular & Endovascular Surgery, Velindre University NHS Trust, Health Education & Improvement Wales (HEIW), Cardiff, UK