ABCC6 and hepatocellular carcinoma: ABCC1, ABCC4, ABCC5, and ABCC10 (Figures 1A,C,D,H) were significantly higher expressed in HCC tissues, but ABCC2, ABCC6, ABCC7, and ABCC9 (Figures 1B,E–G) were significantly lower expressed in HCC tissues.