1. Department of Occupational Medicine, First Faculty of Medicine, Charles University, Prague, Czech Republic;
2. Toxicological Information Centre, General University Hospital, Prague, Czech Republic;
3. Institute of Chemical Technology, Prague, Czech Republic;
4. Centre for Industrial Hygiene and Occupational Medicine, National Institute of Public Health, Prague, Czech Republic;
5. Department of Radiology, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic;
6. Department of Ophthalmology, First Faculty of Medicine, Charles University and General University Hospital, Prague, Czech Republic;
7. Department of Biomimetic Electrochemistry, J. Heyrovský Institute of Physical Chemistry of the AS CR, v.v.i, Prague, Czech Republic