1. Toxicology & Environmental Research & ConsultingDow Chemical Company Midland Michigan USA
2. Environment, Health and Safety Division, Environment DirectorateOrganisation for Economic and Cooperative Development Paris France
3. Health and Environmental Sciences Institute Washington DC USA
4. US Environmental Protection AgencyNational Health and Environmental Effects Research Laboratory, Research Triangle Park North Carolina
5. US Environmental Protection Agency, Office of Pesticide Programs Washington DC
6. National Institute of Public Health and the Environment (RIVM)Centre for Safety of Substances and Products, Bilthoven The Netherlands
7. University of Plymouth Plymouth United Kingdom