Hepatitis B virus(60) Chronic Hepatitis B(31) Hepatocellular carcinoma(22) antiviral therapy(22) HBV(19) entecavir(18) hepatitis B(18) cirrhosis(17) COVID-19(15) Acute-on-chronic liver failure(15) tenofovir.(12) Patient(11) chronic liver disease(8) lamivudine(8) alanine aminotransferase(8) Coronavirus disease 2019(7) hepatitis B surface antigen(7) Factor(7) Liver Biopsy(7) patients(7) Prognosis(7) Mother-to-child transmission(7) therapy(6) China(6) analyzed(6) HBeAg seroconversion(6) Liver injury(6) HCC(6) Liver fibrosis(6) outcome(5)