COVID-19(4) Chronic Hepatitis B(3) Hepatocellular carcinoma(2) Epidemiology(2) Mortality(2) endoscopy(2) Hepatitis B virus(2) hepatitis B(2) gastrointestinal symptoms(1) Osteoporosis.(1) management(1) Liver cirrhosis(1) Colorectal cancer(1) Hepatitis B reactivation(1) antibody(1) Staff Safety.(1) cirrhosis(1) Coinfection(1) acute liver failure(1) outcomes(1) Kidney diseases(1) review.(1) Prognosis.(1) gastrointestinal tract(1) Nonalcoholic fatty liver disease.(1) rituximab.(1) aerosol(1) T-cell restoration.(1) Chronic hepatitis B virus(1) Coronavirus disease 2019(1)