Pathology Research International cell: immunohistochemical evidence,” Hepatology Research, vol. 32, no. 1, pp. 52–57, 2005. [100] F. Zhang, X. P. Chen, W. Zhang et al., “Combined hepato- cellular cholangiocarcinoma originating from hepatic pro- genitor cells: immunohistochemical and double-ﬂuorescence immunostaining evidence,” Histopathology, vol. 52, no. 2, pp. 224–232, 2008. [101] D. Cazals-Hatem, S. Rebouissou, P. Bioulac-Sage et al., “Clinical and molecular analysis of combined hepatocellular- cholangiocarcinomas,” Journal of Hepatology, vol. 41, no. 2, pp. 292–298, 2004. [102] K. Homayounfar, B. Gunawan, S. Cameron et al., “Pattern of chromosomal aberrations in primary liver cancers identiﬁed by comparative genomic hybridization,” Human Pathology, vol. 40, no. 6, pp. 834–842, 2009. [103] H. G. Woo, J. H. Lee, J. H. Yoon et al., “Identiﬁcation of a cholangiocarcinoma-like gene expression trait in hepatocel- lular carcinoma,” Cancer Research, vol. 70, no. 8, pp. 3034– 3041, 2010. 15