Resistance of human multidrug resistance-associated protein 1-overexpressing lung tumor cells to the anticancer drug arsenic trioxide11Abbreviations: MRP1, multidrug resistance-associated protein 1; As2O3, arsenic trioxide; MTT, 3-(4-5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide; and BSO, buthionine sulfoximine.

Abstract
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