1. National Research Centre for the Working Environment, Lersø Parkallé 105, DK-2100 Copenhagen Ø, Denmark
2. Section for Biomolecular Sciences, Department
of Biology, University of Copenhagen, Copenhagen, DK-2200 N, Denmark
3. Stora Enso, FI-00100 Helsinki, Finland
4. UPM Kymmene Oyj, FI-00100 Helsinki, Finland
5. Nanosafety Research Centre, Finnish Institute of Occupational Health, P.O. Box 40, FI-00250 Helsinki, Finland
6. Institute
of Public Health, Copenhagen University, Øster Farimagsgade 5, Copenhagen K, Denmark
7. Department
of Micro- and Nanotechnology, DTU, Kgs. Lyngby, Denmark