1. Institute for Biological Research ‘Siniša Stanković’; University of Belgrade; Belgrade Serbia
2. Institute for Medical Research, Faculty of Medicine of the Military Medical Academy; University of Defence; Belgrade Serbia
3. Institute for Biochemistry, Medical Faculty; University of Belgrade; Belgrade Serbia
4. National Poison Control Centre, Faculty of Medicine of the Military Medical Academy; University of Defence; Belgrade Serbia
5. Institute for Medicinal Plant Research ‘Dr. Josif Pančić’; Belgrade Serbia
6. Department of Anesthesiology and Pain Management, John Stroger Hospital of Cook Country; Chicago IL 60612 USA
7. Department of Pharmacology and Toxicology; Medical School, Banja Luka, Republic of Srpska, Bosnia and Herzegovina