1. St George's Vascular Institute; St George's University Hospitals NHS Foundation Trust; London UK
2. Amputation Prevention Center; Valley Presbyterian Hospital; Los Angeles CA USA
3. Department of Endocrinology; University Hospital of Malmö; Malmö Sweden
4. Seattle Epidemiologic Research and Information Centre, Department of Veterans Affairs Puget Sound Health Care System; University of Washington; Seattle WA USA
5. Vascular Surgery; The University of Adelaide; Adelaide South Australia Australia
6. Michael E. Debakey Department of Surgery; Baylor College of Medicine; Houston USA
7. Department of Vascular Radiology; Amsterdam Medical Centre; Amsterdam The Netherlands
8. Department of Vascular Surgery; Southampton University Hospitals NHS Trust; Southampton UK
9. Department of Surgery; University of Washington; Seattle WA USA
10. Division Endocrinology; MUMC+, CARIM Institute; Maastricht The Netherlands