Letter to the EditorBuringh, EltjoOpperhuizen, AntoonAuthor informationRIVM, National Institute for Public Health and the Environment, A. van Leeuwenhoeklaan 9, Bilthoven 3720 BA, The Netherlands*Corresponding author. Fax: +31–30–274–29–71E-mail address:[email protected]Regulatory Toxicology and Pharmacology 37(3):p 411, June 2003. | DOI: 10.1016/S0273-2300(03)00021-7Copyright © 2003Elsevier, Inc.