title: Intrinsic versus acquired drug resistance.
mesh_terms: D000970:Antineoplastic Agents / Q000627:therapeutic use*; D004351:Drug Resistance; D006801:Humans; D008954:Models, Biological; D009154:Mutation; D009369:Neoplasms / Q000188:drug therapy* / Q000235:genetics; D014410:Tumor Stem Cell Assay
chemical_list: D000970:Antineoplastic Agents