1. Institute for Physical Medicine and Rehabilitation “Dr. Miroslav Zotović”, Banja Luka, Bosnia and Herzegovina
2. Department of Histology and Embryology, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
3. Department of Pharmacology, Toxicology and Clinical Pharmacology, Faculty of Medicine, University of Banja Luka, Banja Luka, Bosnia and Herzegovina
4. Department of Physical Medicine and Rehabilitation, Faculty of Medicine, University of Banja Luka, Banja Luka, Bosnia and Herzegovina