title: Effects of varying the onset and duration of exposure to phenobarbital on its enhancement of 2-acetylaminofluorene-induced hepatic tumorigenesis.
mesh_terms: D015073:2-Acetylaminofluorene / Q000633:toxicity*; D000818:Animals; D004357:Drug Synergism; D005449:Fluorenes / Q000633:toxicity*; D008113:Liver Neoplasms / Q000139:chemically induced*; D008297:Male; D009374:Neoplasms, Experimental / Q000139:chemically induced; D010634:Phenobarbital / Q000008:administration & dosage / Q000494:pharmacology*; D051381:Rats; D013997:Time Factors
chemical_list: D005449:Fluorenes; D015073:2-Acetylaminofluorene; D010634:Phenobarbital