1. Department of Internal medicine, Faculty of Medical Sciences, University of Kragujevac , Serbia
2. Clinic for Haematology, Clinical Center “Kragujevac”, Kragujevac , Serbia
3. Center of Nephrology and Dialysis, Clinic for Urology and Nephrology, Clinical Center “Kragujevac”, Kragujevac , Serbia
4. Department of Ophthalmology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac , Serbia
5. Department of Internal medicine, Faculty of Medical Sciences, University of Kragujevac, Kragujevac , Serbia
6. Department of Surgery, Faculty of Medical Sciences, University of Kragujevac , Serbia
7. Surgical Clinic, Clinical Center “Kragujevac”, Kragujevac , Serbia
8. BEOlab, Belgrade , Serbia
9. Clinic for Haematology, Clinical Center “ Kragujevac ”, Serbia