title: The role of oxygen radicals as a possible mechanism of tumor promotion.
mesh_terms: D000818:Animals; D002273:Carcinogens; D004260:DNA Repair / Q000187:drug effects; D004273:DNA, Neoplasm / Q000378:metabolism; D005609:Free Radicals; D009153:Mutagens; D009369:Neoplasms / Q000378:metabolism*; D010100:Oxygen / Q000378:metabolism*; D010447:Peptide Hydrolases / Q000378:metabolism
chemical_list: D002273:Carcinogens; D004273:DNA, Neoplasm; D005609:Free Radicals; D009153:Mutagens; D010447:Peptide Hydrolases; D010100:Oxygen