title: Purine N-oxides. XIX. On the oncogenic N-oxide derivatives of guanine and xanthine and a nononcogenic isomer of xanthine N-oxide.
mesh_terms: D000225:Adenine / Q000009:adverse effects; D000818:Animals; D006528:Carcinoma, Hepatocellular / Q000139:chemically induced; D006147:Guanine / Q000009:adverse effects*; D008113:Liver Neoplasms; D015122:Mercaptopurine / Q000009:adverse effects; D009369:Neoplasms / Q000139:chemically induced*; D009374:Neoplasms, Experimental; D010087:Oxides; D051381:Rats; D014970:Xanthines / Q000009:adverse effects*
chemical_list: D010087:Oxides; D014970:Xanthines; D006147:Guanine; D015122:Mercaptopurine; D000225:Adenine