Thyroid Follicular Lesions Induced by Oral Treatment for Two Years with 2, 3, 7, 8-Tetrachlorodibenzo-p-Dioxin and Dioxin-Like Compounds in Female Harlan Sprague-Dawley Rats

¹Astellas Pharma Inc., Osaka, Japan, ²Pathology Associates—A Charles River Company, Cary, NC, United States, ³Experimental Pathology Laboratories, Research Triangle Park, NC, United States, ⁴Battelle Columbus Laboratories, Colimbus, OH, United States, ⁵National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC, United States, and ⁶Toxicologic Pathologist, Timrat, Israel