6Hanada H,Hagiwara K,Nakajima T,et al.Phosphorylation of the Mr 170,000 to 180,000 glycoprotein specific to mutidrugresistant tumor cells,effects of verapamil,trifluoperacine,and phorbol esters.Cancer Res,1987,47(11):2860.
7Vayuvegula B,Slater L,Meador J,et al.Correction of altered plasma membrane potentials.A possible mechanism of cyclosporin A and verapamil reversal of pleiotropic drug resistance in neoplasia.Cancer Chemother Pharmacol,1988,22(2):163.
