1Department of Toxicology, Silesian University of Medicine, Jagiellońska 4, 41-200 Sosnowiec, Poland
2Department of Clinical Anesthesiology, Silesian University of Medicine, 3-go Maja 13/15, 41-800 Zabrze, Poland
3Department of Otolaryngology, Silesian University of Medicine, Skłodowskiej-Curie 10 M, 41-800 Zabrze, Poland
4Departament of Otolaryngology of Head and Neck Surgery, Wrocław Medical University,
Borowska 213, 50-556 Wrocław, Poland
5Department of Otorhinolaryngology, Head and Neck Surgery, Holycross Cancer Center,
Artwińskiego 3, 25-734 Kielce, Poland
6Department of Instrumental Analysis, Medical University of Silesia,
Narcyzów 1, 41-200 Sosnowiec, Poland
Pol. J. Environ. Stud. 2011;20(1):167–172