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Kaplan-Meier survival curves of hepatocellular carcinoma patients classified according to hepatitis B virus status. A and B: In hepatocellular carcinoma (HCC) patients negative for serum hepatitis B virus (HBV) DNA, the overall survival (OS) (A) and progression-free survival (PFS) (B) of HCC patients with anaplastic lymphoma kinase copy number gain (ALK/CNG)-positivity and ALK/CNG-negativity; C and D: The OS (C) and PFS (D) in HCC patients positive for serum HBV DNA.
