1. Faculty of Medical Sciences, Department for Preventive and Pediatric Dentistry, Kragujevac
2. Faculty of Medical Sciences, Center for Molecular Medicine and Stem Cell Research, Kragujevac
3. Faculty of Science, Kragujevac
4. Faculty of Chemistry, Belgrade
5. School of Dental Medicine, Clinic for Pediatric and Preventive Dentistry, Belgrade
6. Faculty of Medical Sciences, Department of Endodontics, Kragujevac