1. Clinic of Hematology, University Clinical Center of Serbia + Faculty of Medicine, University of Belgrade
2. Faculty of Medicine, University of Belgrade + Department of Hematology CHC “Bežanijska Kosa”
3. Clinic of Hematology, Clinical Center of Vojvodina + Faculty of Medicine, University of Novi Sad
4. Clinic of Hematology, Clinical Center of Vojvodina