Chromosome damage induced by 5-azacytidine under the influence of caffeine or cytosine arabinoside in CHO-K1 (Wild-Type) and XRS-5 (Mutant) cell lines - Sakamoto-Hojo, Elza Tiemi; Bícego-Nahas, Kênia Cardoso; Takahashi-Hyodo, Sandra A.; Tavares, D. C.; Dias, F. L. (Cancer Research Therarpy and Control, 2001)