1. Faculty of Medicine, Slovak Medical University, 833 03 Bratislava, Slovakia
2. Institute of Hygiene and Epidemiology, First Faculty of Medicine, Charles University and General University Hospital in Prague, 121 08 Prague, Czech Republic
3. Health Effects Laboratory, Norwegian Institute for Air Research, 2007 Kjeller, Norway
4. Faculty of Public Health, Slovak Medical University, 833 03 Bratislava, Slovakia
5. Department of Environmental Analytical Chemistry, Institute of Analytical Chemistry of the Czech Academy of Sciences, 602 00 Brno, Czech Republic
6. RECETOX, Faculty of Science, Masaryk University, 625 00 Brno, Czech Republic
7. Laboratory of Molecular Morphogenesis, Institute of Animal Physiology and Genetics, Czech Academy of Sciences, 602 00 Brno, Czech Republic
8. Aerosol Chemistry and Physics Research Group, Institute of Chemical Process Fundamentals of the Czech Academy of Sciences, 165 00 Prague, Czech Republic
9. Public Health Authority of the Slovak Republic, Radiation Protection Department, 82645 Bratislava, Slovakia