1. University of Banja Luka, Faculty of Medicine, Department of Orthodontics, Banja Luka, Republic of Srpska, Bosnia and Herzegovina
2. University of Banja Luka, Faculty of Medicine, Department of Periodontology and Oral Medicine, Banja Luka, Republic of Srpska, Bosnia and Herzegovina
3. University of Banja Luka, Faculty of Medicine, Department of Oral Diseases, Banja Luka, Republic of Srpska, Bosnia and Herzegovina