Affiliation: | 1. Department of Oral Medicine and Periodontology, Dental Clinic, Faculty of medicine, University of Ni?, Ni?, Serbia;2. Department of Human Genetics, School of Dental medicine, University of Belgrade, Belgrade, Serbia;3. Institute of Pathological Anatomy, Medical Faculty Nis, University of Ni?, Ni?, Serbia;4. Faculty of Sport and Physical Education, Department of applied kinesiology, University of Ni?, Ni?, Serbia |