1 Department of Occupational Medicine and Clinical Toxicology, Medical Faculty, Pavol Jozef Safarik University and Louis Pasteur University Hospital, Rastislavova 43, 04190, Kosice, Slovakia. slavomir.perecinsky@upjs.sk.
2 Department of Medical Physiology, Medical Faculty, Pavol Jozef Safarik University, Tr. SNP 1, 040 01, Kosice, Slovakia.
3 Department of Occupational Medicine and Clinical Toxicology, Medical Faculty, Pavol Jozef Safarik University and Louis Pasteur University Hospital, Rastislavova 43, 04190, Kosice, Slovakia.