1. Institute of Macromolecular Chemistry, Czech Academy of Sciences, Prague, Czech Republic;
2. Faculty of Medicine, Slovak Medical University, Bratislava, Slovakia;
3. Institute of Food Science and Biotechnology, Brno University of Technology, Brno, Czech Republic;
4. Institute of Virology, Slovak Academy of Sciences, Bratislava, Slovakia;
5. Institute of Electrical Engineering, Slovak Academy of Sciences, Bratislava, Slovakia;
6. Health Effects Laboratory, Department of Environmental Chemistry, NILU-Norwegian Institute for Air Research, Jeller, Norway