Enzyme Induction, Rats, Biological Assay - methods, Receptors, Estrogen - drug effects, Animals, Incineration, Refuse Disposal, Carcinoma, Hepatocellular - pathology, Estrogen Antagonists - adverse effects, Endocrine System - drug effects, Cytochrome P-450 CYP1A1 - pharmacology, Dioxins - adverse effects, Tumor Cells, Cultured, Receptors, Estrogen - physiolo...