1. Centre of Experimental Medicine, Institute of Experimental Pharmacology and Toxicology, Slovak Academy of Sciences , Bratislava , Slovakia
2. Jessenius Faculty of Medicine in Martin, Department of Pharmacology , Comenius University in Bratislava , Martin , Slovakia
3. Faculty of Natural Sciences, Department of Animal Physiology and Ethology , Comenius University in Bratislava , Bratislava , Slovakia
4. The Stephan Angeloff Institute of Microbiology (SAIM), Bulgarian Academy of Sciences , Sofia , Bulgaria