Sato H, Preisler H, Day R, Raza A, Larson R, Browman G, Goldberg J, Vogler R, Grunwald H, Gottlieb A, et al. MDR1 transcript levels as an indication of resistant disease in acute myelogenous leukaemia. Br J Haematol. 1990 Jul; 75(3):340-5.