8Yang SH, Watanabe J, Nakashima O, et al. Clinicopathologic study on clear cell hepatocellular carcinoma. Pathol Int, 1996, 46 : 503 -509.
9Lao XM, Zhang YQ, Jin X,et al. Primary clear cell carcinoma of liver:elinieopathologic features and surgical results of 18 eases. Hepatogastroenterology, 2006,53 : 128-132.
10Lai C, Wu PC, Lam KC, et al. Histological prognostic indicators in hepartocellular carcinoma. Cancer, 1979,44 : 1677-1683.