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. 2017 Sep 12;24:56–63. doi: 10.1016/j.ebiom.2017.09.007

Fig. 1.

Fig. 1

Study design. HCC indicates hepatocellular carcinoma. CC represents cholangiocarcinoma. HCC-CC means combined type of HCC and CC. Other includes rare types of primary liver cancer such as angiosarcoma, hemangiosarcoma, or squamous cell carcinoma of the liver. At-risk liver diseases include hepatitis, liver cirrhosis, focal nodular hyperplasia. AFP means α-fetoprotein.