1. Peripheral Interventional Unit, Humanitas Gavazzeni, Bergamo, Italy
2. Vascular Unit, Humanitas Gavazzeni, Bergamo, Italy
3. Diabetic Foot Clinic, Humanitas Gavazzeni, Bergamo, Italy
4. Vascular Surgery, University of Parma, Maggiore Hospital, Parma, Italy
5. Vascular Surgery, University of Bologna, Policlinico Sant’Orsola-Malpighi, Bologna, Italy
6. Department of Surgery, Noordwest Ziekenhuisgroep, Alkmaar, the Netherlands
7. Vascular Centre Arnsberg, Arnsberg Clinic, Arnsberg, Germany
8. Vascular Service, Department of Surgery, Changi General Hospital, Singapore