The known clinically relevant gene fusions discovered in the cfRNA data consisted of EML4-ALK fusion in one HCC patient and ETV6 fusions in one stomach cancer, nine HCC and four colorectal cancer patients (Ford et al. 1998, Iijima et al. 2000, Bohlander 2005, Taniue and Akimitsu 2021). Here, ALK is linked to hepatocellular carcinoma.