Large differences in metabolic activation of chemically closely related compounds: effect of pure enzymes and enzyme induction on the mutagenicity of the twelve monomethylated benz(a)anthracenes; 7,12-dimethylbenz(a)anthracene and benz-(a)anthracene in the Ames test. - Glatt,H.R.; Vogel,K.; Bentley,P.; Sims,P.; Oesch,F. (Carcinogenesis, 1981)