title: Correspondence re: Xiu F. Hu et al., Combined use of cyclosporin A and verapamil in modulating multidrug resistance in human leukemia cell lines. Cancer Res., 50: 2953-2957, 1990.
authors.forename: B L
authors.initials: BL
authors.lastname: Samuels
authors.forename: M J
authors.initials: MJ
authors.lastname: Ratain
mesh_terms: D003524:Cyclosporins / Q000494:pharmacology*; D004305:Dose-Response Relationship, Drug; D004351:Drug Resistance; D006801:Humans; D007938:Leukemia / Q000473:pathology; D014407:Tumor Cells, Cultured / Q000187:drug effects; D014700:Verapamil / Q000494:pharmacology*
chemical_list: D003524:Cyclosporins; D014700:Verapamil