Figure 4From: Hepatitis C virus infection and the risk of intrahepatic cholangiocarcinoma and extrahepatic cholangiocarcinoma: evidence from a systematic review and meta-analysis of 16 case-control studiesForest plot of extrahepatic cholangiocarcinoma risk associated with HCV infection. The pooled risk estimate was 1.75 (95% CI, 1.00 to 3.051).Back to article page