<p><b>Copyright information:</b></p><p>Taken from "Pesticide Mixtures, Endocrine Disruption, and Amphibian Declines: Are We Underestimating the Impact?"</p><p></p><p>Environmental Health Perspectives 2006;114(S-1):40-50.</p><p>Published online 24 Jan 2006</p><p>PMCID:PMC1874187.</p><p>This is an Open Access article: verbatim copying and redistribution of this article are permitted in all media for any purpose, provided this notice is preserved along with the article's original DOI</p> () The frequency of animals with detectable damage to the thymus. No control animals showed damage to the thymus. Animals exposed to 0.1 ppb atrazine or to -metolachlor (-met) had damage as shown in , with increasing frequencies of damage with exposure to Bicep II Magnum (atrazine + metolachlor, given to concentration of 0.1 ppb atrazine), and maximum damage with exposure to the pesticide mixture (Mix). Histological sections were 4 μm stained in Mallory’s trichrome stain. Scale bar = 0.5 mm for and
