1. University of Niš, Department for Pharmacy, Faculty of Medicine; Blvd. Dr Zoran Djindjić 81 18000 Niš Serbia
2. University of Niš, Faculty of Technology; Bulevar oslobodjenja 124 Leskovac Serbia
3. University of Niš, Department for Cell and Tissue Engineering, Institute of Biology and Human Genetics, Faculty of Medicine; Blvd. Dr Zoran Djindjić 81 18000 Niš Serbia