1. University Cardiology Clinic , Faculty of Medicine , Skopje
2. University Clinic of Hematology , Skopje
3. Zan Mitrev Clinic , Skopje
4. Institute for Transfusion Medicine Skopje
5. General Hospital 8th September
6. Private Outpatient Health Facility “D-r. Hadjiev” , Bitola
7. General Hospital Veles , R.N. Macedonia