1. Department of Microbiology and Immunology, Center for Molecular Medicine and Stem Cell Research, Faculty of Medical Sciences; University of Kragujevac; Kragujevac Serbia
2. Department of Genetics, Faculty of Medical Sciences; University of Kragujevac; Kragujevac Serbia
3. Department of Histology and embryology, Faculty of Medical Sciences; University of Kragujevac; Kragujevac Serbia
4. Department of Topographic and Clinical Anatomy, Institute of Anatomy; University of Bern; Bern Switzerland