1. Diabetes Centre; Prague; Czech Republic
2. Autotransfusion Unit; Prague; Czech Republic
3. Clinic of Transplant Surgery, Institute for Clinical and Experimental Medicine; Prague; Czech Republic
4. Centre for Cell Therapy and Tissue Repair, Second Medical Faculty; Charles University; Prague; Czech Republic
5. Institute of Experimental Medicine, Czech Academy of Science; Prague; Czech Republic
6. Diabetes Centre, Tameside General Hospital; Ashton-Under-Lyne; Lancashire; UK