title: Transfer of methotrexate resistance by somatic cell hybridization.
mesh_terms: D000818:Animals; D002459:Cell Fusion; D002875:Chromosomes; D006224:Cricetinae; D003412:Cricetulus; D004351:Drug Resistance; D006822:Hybrid Cells / Q000187:drug effects* / Q000648:ultrastructure; D008727:Methotrexate / Q000494:pharmacology*; D051379:Mice
chemical_list: D008727:Methotrexate