1. Institut für Energie- und Umwelttechnik e. V. (IUTA)
2. Air Quality & Filtration Unit
3. 47229 Duisburg
4. Germany
5. Institute for the Research on Hazardous Substances (IGF)
6. 44789 Bochum
7. Institute of Occupational Medicine (IOM)
8. Research Avenue North Riccarton
9. Edinburgh EH14 4AP
10. UK