title: Comparison of the cytotoxicity of methotrexate and aminopterin on methotrexate resistant murine lymphoma cells in vitro.
mesh_terms: D000630:Aminopterin / Q000494:pharmacology*; D000818:Animals; D002460:Cell Line; D002470:Cell Survival / Q000187:drug effects; D004351:Drug Resistance; D007939:Leukemia L1210 / Q000188:drug therapy; D008223:Lymphoma / Q000188:drug therapy*; D008727:Methotrexate / Q000494:pharmacology*; D009374:Neoplasms, Experimental / Q000188:drug therapy
chemical_list: D000630:Aminopterin; D008727:Methotrexate