1. Institute for Clinical and Experimental Medicine (IKEM), Prague, Czech Republic
2. Birmingham City University, Birmingham, UK
3. UH Merkur, Zajčeva 19, 10 000 Zagreb, Croatia
4. University Hospital Ostrava, Czech Republic
5. Outpatient Office of Jahn Ferenc Hospital, Budapest, Hungary
6. ARGO Medical Centre, Lodz, Poland
7. Endocrinology Department, Medical Centre of Postgraduate Education, Ul. Marymoncka 99/103, 01-813 Warszawa, Poland
8. University of Pécs, Hungary
9. Angiodiabetica Vascular and Diabetic Foot Clinic, Poznan, Poland