Dissection of mechanisms of Chinese medicinal formula Realgar-Indigo naturalis as an effective treatment for promyelocytic leukemia - Wang, L; Zhou, G B; Liu, P; Song, J H; Liang, Y; Yan, X J; Xu, F; Wang, B S; Mao, J H; Shen, Z X; Chen, S J; Chen, Z (Proc Natl Acad Sci USA, 2008)