1. Department of Pharmacy, Faculty of Medicine; University of Nis; Bulevar Dr Zorana Djindjica 81 18000 Nis Serbia
2. Department of Chemistry, Faculty of Medicine; University of Nis; Bulevar Dr Zorana Djindjica 81 18000 Nis Serbia
3. Institute of Biochemistry, Faculty of Medicine; University of Nis; Bulevar Dr Zorana Djindjica 81 18000 Nis Serbia
4. Institute for Cardiovascular Rehabilitation, Faculty of Medicine; University of Nis; 18205 Niska Banja Serbia
5. Department of Pharmaceutical Chemistry, Faculty of Pharmacy; University of Ljubljana; Askerceva 7 SI-1000 Ljubljana Slovenia