Gingival Carcinogenicity in Female Harlan Sprague-Dawley Rats Following Two-Year Oral Treatment with 2,3,7,8-Tetrachlorodibenzo-p-dioxin and Dioxin-Like Compounds

¹National Institute of Environmental Health Sciences, Research Triangle Park, NC, United States, ²Pathology Associates-A Charles River Company, Durham, NC, United States, ³Experimental Pathology Laboratories, Research Triangle Park, NC, United States, ⁴Battelle Columbus Laboratories, Columbus, OH, United States, ⁵Fujisawa Pharmaceutical Co., Ltd., Osaka, Japan