1. Department of Vascular Surgery, Southampton University Hospital, Southampton, United Kingdom
2. Department of Clinical Biochemistry (Vascular Disease Prevention Clinics), Royal Free Hospital Campus, University College London Medical School, University College London (UCL), London, United Kingdom
3. Division of Vascular Surgery, New York University Langone Medical Center, New York, NY, USA
4. Division of Vascular Surgery, The Cleveland Clinic, Cleveland, OH, USA
5. Stroke Prevention & Atherosclerosis Research Centre, Robarts Research Institute, Western University, London, Ontario, Canada