1. St George's Vascular Institute; St George's Healthcare NHS Trust; London UK
2. Department of Endocrinology; University Hospital of Malmö; Stockholm Sweden
3. Seattle Epidemiologic Research and Information Centre-Department of Veterans Affairs Puget Sound Health Care System; University of Washington; Seattle WA USA
4. Vascular Surgery; The University of Adelaide; Adelaide South Australia Australia
5. SALSA (Southern Arizona Limb Salvage Alliance); University of Arizona Health Sciences Center; Tucson AZ USA
6. Department of Vascular Radiology; Amsterdam Medical Centre; Amsterdam The Netherlands
7. Department of Vascular Surgery; University Hospital Southampton NHS Foundation Trust; London UK
8. Department of Surgery; University of Washington; Seattle WA USA
9. Division of Endocrinology; MUMC+, CARIM and CAPHRI Institute; Maastricht The Netherlands