1. Military Medical Center “Karaburma”, Belgrade, Serbia
2. Institute for Rehabilitation, Belgrade, Serbia
3. Military Medical Academy, Institute for Medical Research, Belgrade, Serbia + University of Defence, Faculty of Medicine of the Military Medical Academy, Belgrade, Serbia
4. University of Niš, Faculty of Medicine, Institute for Biochemistry, Niš, Serbia
5. Military Medical Academy, Clinic of Psychiatry, Belgrade, Serbia + University of Defence, Faculty of Medicine of the Military Medical Academy, Belgrade, Serbia
6. Department of Organic Chemistry, Faculty of Pharmacy, Belgrade, Serbia