1. Central Military Hospital, Department of Pathology; H-1134; Budapest; Róbert Károly körút 44; Hungary
2. National Institute of Environmental Health, Department of Toxicology; H-1097; Budapest; Gyáli út 2-6; Hungary
3. Department of Public Health; University of Szeged Faculty of Medicine; H-6720; Szeged; Dóm tér 10; Hungary