2[1] Keilhauer G, Emiling F, Raschack M，et al. The use of R-VPM is superior to rasmic VPM in breaking multidrug resistance of malignant cells [J]. Proc Am Assoc Cancer Res, 1989, 30:503.
3[5] Jane AP, Wishart GC, Setanoians A,et al. Identification of a multidrug resistance modulator with clinical potential by analysis of synergistic activity in vitro, toxicity in vivo and growth delay in a solid human tumour xenograft [J]. Biochemical Pharmacology, 1994, 47: 257.
4[6] Ford JM, Bruggemann EP, Pastan I ,et al. Cellular and biochemical characterization of thioxanthenes for reversal of multidrug resistance in human and murine cell lines[J]. Cancer Res, 1990, 50: 1748.
5[7] Daniela D, Mariagrazia M, Angla M ,et al. D-Verapamil downmodulaes P170-associated resistance to doxorubicin, daunorubicin and idarubicin[J]. Anticancer Drugs, 1993, 4: 173.
6[8] Bissett D, Kerr DJ, Cassidy J ,et al. Phase I and Pharmacokinetic study of D-VPM and doxorubicin [J]. Br J Cancer, 1991, 64: 1168.
