1. QSAR Lab Ltd. Aleja Grunwaldzka 190/102 Gdansk 80‐266 Poland
2. Faculty of Chemistry University of Gdansk Wita Stwosza 63 Gdansk 80‐308 Poland
3. Environmental Health Science and Research Bureau Health Canada Ottawa Ontario K1A 0K9 Canada
4. Department of Biology University of Ottawa Ottawa Ontario K1N 9A7 Canada
5. The National Research Centre for the Working Environment Copenhagen DK‐2100 Denmark