1. Southern Arizona Limb Salvage Alliance (SALSA); University of Arizona College of Medicine; Tuscon; Arizona
2. Division of Vascular Surgery; Department of Surgery; University of North Carolina School of Medicine; Chapel Hill; North Carolina
3. Department of Medicine; California School of Podiatric Medicine at Samuel Merritt University; Oakland; California
4. Department of Dermatology and Cutaneous Surgery; University of Miami Miller School of Medicine; Miami; Florida