1. University of Kragujevac, Faculty of Medical Sciences , Department of Dentistry , Kragujevac , Serbia
2. Center for Molecular Medicine and Stem Cell Research, Faculty of Medical Sciences , University of Kragujevac , Kragujevac , Serbia
3. Department of Histology and Embriology, Faculty of Medical Sciences , University of Kragujevac , Kragujevac , Serbia
4. ETEP (Etiology and Therapy of Periodontal Diseases) Research Group, Faculty of Dentistry , University Complutense of Madrid , Pza. Ramón y Cajal, s/n, Madrid , Spain
5. Department of Pharmacy, Faculty of Medical Sciences , University of Kragujevac , Kragujevac , Serbia