1. Department of Anatomy, Histology and Physiology, University of Veterinary Medicine in Kosice, Kosice, Slovak Republic
2. Institute of Experimental Medicine, University of Pavol Jozef Safarik University in Kosice, Kosice, Slovak Republic
3. Institute of Gnotobiology and Microbiology, University of Veterinary Medicine in Kosice, Kosice, Slovak Republic