1. Institute of Experimental Medicine CAS, Department of Toxicology & Molecular Epidemiology, Videnska 1083, Prague 4 142 20, Czech Republic
2. Department of Genetics & Microbiology, Faculty of Science, Charles University, Vinicna 5, Prague 2 128 44, Czech Republic
3. First Faculty of Medicine, Charles University in Prague & General University Hospital in Prague, Department of Occupational Medicine, Na Bojisti 1, Prague 2 120 00, Czech Republic
4. Institute of Chemical Process Fundamentals CAS, Department of Aerosol Chemistry & Physics, Rozvojova 1, Prague 6 165 02, Czech Republic
5. Institute of Dental Medicine, First Faculty of Medicine, Charles University & General University Hospital in Prague, Katerinska 32, Prague 2 121 08, Czech Republic
6. Department of Computer Science, Czech Technical University in Prague, Karlovo Namesti 13, Prague 2 121 35, Czech Republic