President International Diabetes Federation (IDF). Chair EURADIA: Alliance for European Diabetes Research. Professor of Medicine at University of Manchester. Visiting Professor at University of Miami. Past-President European Association for the Study of Diabetes. Associate editor of Diabetes Care (ADA).

Professor of Surgery at the University of Southern California. Founder and co-chair of the American Limb Preservation Society (ALPS), International Diabetic Foot Conference (DFCON) & Southwestern Academic Limb Salvage Alliance (SALSA).

Adj. Professor Midwestern University and Hon. Professor NUIG. Former Chair of the Foot Care Council of the American Diabetes Association (ADA) and former Chief of the Podiatry section at the Phoenix VAMC. Past President of the American College of Foot and Ankle Surgeons (ACFAS).

Chief of Podiatry and Asc. Professor of Orthopedics at University of Texas Health Science Center (UTHSC). President of the American Board of Podiatric Medicine (ABPM). Asc. Editor of the Journal of the American Podiatric Medical Association.

Vascular & Endovascular Surgeon at Vascular Institute of New York and New York University Langone Medical Center. Ast. Professor at Mount Sinai Medical Center and SUNY Downstate in Brooklyn. President of the Eastern Vascular Society.

Professor and Chair of the Department of Orthopedic Surgery at UT Southwestern. Medical Director of Orthopedic Surgery at UT Southwestern University Hospitals. Board member International Association of Diabetic Foot Surgeons (IADFS)

Professor at MedStar Georgetown University Hospital, Plastic & Reconstructive Surgery Department. Director of the Center for Wound Healing. Chairman of the Diabetic Limb Salvage Conference (DLS).

Senior Lecturer in Medicine at the University of Manchester and Research Associate Professor at the University of Miami. Academic Editor of Medicina.