1. Amputation Prevention Center at Valley Presbyterian Hospital, Los Angeles, CA.
2. Carl T. Hayden Veterans Affairs Medical Center, Phoenix, AZ.
3. Southern Arizona Limb Salvage Alliance (SALSA), University of Arizona College of Medicine, Tucson, AZ.
4. Department of Medicine, University of Manchester, Manchester, UK.
5. Diabetic Foot Clinic, King’s College Hospital, London, UK.
6. Diabetes and Metabolic Diseases Department, Pitié-Salpêtrière University Hospital, Paris, France.
7. Department of Diabetes and Endocrinology, Nottingham University Hospitals NHS Trust, Nottingham, UK.
8. Institute for Clinical and Experimental Medicine, Diabetes Centre, Prague, Czech Republic.
9. Department of Diabetes and Angiology, Marienkrankenhaus, Soest, Germany.
10. Department of Radiology, Thomas Jefferson University Hospital, Philadelphia, PA.
11. Department of Orthopedic Surgery, Loyola University Health System, Maywood, IL.
12. Diabetes Center and Foot Care Unit A, Gemelli Hospital, Catholic University, Rome, Italy.
13. Podiatry Service, Veterans Affairs Medical Center, Lebanon, PA.
14. Department of Orthopedic Surgery, University of Pittsburgh Medical Center, Pittsburgh, PA.
15. Department of Internal Medicine, University of Rome Tor Vergata, Rome, Italy.