1. University Podiatry Clinic, College of Medicine, Complutense University, Madrid, Spain
2. Department of Systems Medicine - University of Tor Vergata - Roma, Italia
3. Rothschild University Hospital, APHP, Paris, France
4. Department of Surgery and Cancer, Faculty of Medicine, Imperial College School of Medicine, Charing Cross Hospital, London, UK
5. Department of Endocrinology, Diabetology and Geriatrics – Klinikum Bürgerhospital, Stuttgart, Germany