1. Faculty of Natural Sciences and Mathematics, Department of Experimental Biochemistry and Physiology, Institute of Biology, Ss. Cyril and Methodius University, Skopje, Republic of North Macedonia
2. State University of Tetovo, Tetovo, Republic of North Macedonia
3. Faculty of Veterinary Medicine, Department of Pathology, Ss Cyril and Methodius University, Skopje, Republic of North Macedonia