title: Collateral sensitivity to methotrexate and dichloromethotrexate of cultured lymphocytic leukemia L1210 cells resistant to 6-mercaptopurine.
mesh_terms: D000818:Animals; D002455:Cell Division / Q000187:drug effects; D002478:Cells, Cultured; D004351:Drug Resistance; D007939:Leukemia L1210 / Q000188:drug therapy*; D015122:Mercaptopurine / Q000494:pharmacology*; D008727:Methotrexate / Q000031:analogs & derivatives* / Q000494:pharmacology*
chemical_list: C004763:3',5'-dichloromethotrexate; D015122:Mercaptopurine; D008727:Methotrexate