Counterintuitive Toxicity Increasingly, scientists are finding that they can't predict a poison's low-dose effects Janet Raloff: http://www.sciencenews.org/articles/20070120/bob8.asp J. Marshall Reber, ScD 165 Berkeley St. Methuen MA 01844 Tel/Fax: 978-683-6540 Alternate Email: reber at alum.mit.edu