1. Foot Ulcer Trials Unit; Nottingham University Hospitals Trust; Nottingham; UK
2. St George's Vascular Institute; St George's Healthcare NHS Trust; London; UK
3. Department of Endocrinology; University Hospital of Malmö; Sweden
4. Southern Arizona Limb Salvage Alliance (SALSA); University of Arizona College of Medicine; Tucson; Arizona
5. IWGDF; Heemstede; The Netherlands
6. Service de diabétologie; Hôpital Pitié-Salpêtrière, Assistance Publique des Hôpitaux de Paris, and Université P et M Curie; Paris; France
7. Department of Endocrinology; Lund University Hospital and Institution for Clinical Sciences in Lund; Sweden
8. School of Healthcare Studies; Cardiff University; Cardiff; UK