NELSON, A A Tumors of the urinary bladder, gall bladder, and liver in dogs fed o-aminoazotoluene or p-dimethylaminoazobenzene. [electronic resource] - Journal of the National Cancer Institute Jun 1953 - 1497-1509 p. digital Publication Type: Journal Article ISSN: 0027-8874 Subjects--Topical Terms: AnimalsCarcinogensDogsLiverNeoplasmsNeoplasms, ExperimentalUrinary Bladdero-Aminoazotoluenep-Dimethylaminoazobenzene