title: Letter: On the source of "minor thymine" in DNA from a Novik off rat hepatoma cell line.
mesh_terms: D000818:Animals; D006528:Carcinoma, Hepatocellular / Q000378:metabolism*; D002460:Cell Line; D002854:Chromatography, Paper; D003596:Cytosine / Q000378:metabolism; D004247:DNA / Q000096:biosynthesis*; D003641:Deamination; D003841:Deoxycytidine / Q000378:metabolism; D008099:Liver / Q000187:drug effects / Q000378:metabolism; D008113:Liver Neoplasms; D008727:Methotrexate / Q000494:pharmacology; D009374:Neoplasms, Experimental; D051381:Rats; D013936:Thymidine / Q000378:metabolism; D013941:Thymine / Q000096:biosynthesis*; D014316:Tritium
chemical_list: D003841:Deoxycytidine; D014316:Tritium; D003596:Cytosine; D004247:DNA; D013941:Thymine; D013936:Thymidine; D008727:Methotrexate