1. Department of Reproduction, Fertility and Artificial Insemination, Faculty of Veterinary medicine, University of Belgrade, Belgrade, Serbia
2. Department of Toxicology, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
3. Institute for Medical Research, Military Medical Academy, Medical Faculty MMA, University of Defense, Belgrade, Serbia
4. Faculty of Pharmacy, University of Tuzla, Tuzla, Bosnia and Herzegovina