title: Modulation of methotrexate toxicity by thymidine: sequence-dependent biochemical effects.
mesh_terms: D000818:Animals; D002460:Cell Line; D002478:Cells, Cultured; D005347:Fibroblasts / Q000378:metabolism; D008114:Liver Neoplasms, Experimental / Q000378:metabolism; D008214:Lymphocytes / Q000378:metabolism; D008727:Methotrexate / Q000037:antagonists & inhibitors* / Q000633:toxicity; D051381:Rats; D013936:Thymidine / Q000494:pharmacology*; D013997:Time Factors
chemical_list: D013936:Thymidine; D008727:Methotrexate