COVID-19(8) Inflammatory bowel disease(7) disease(6) liver(4) Hepatitis B virus(4) approach(3) outcome(3) Guidance(3) herpes zoster(3) SARS-CoV-2(3) Quality of life(3) Infection(3) IBD(3) Safe(3) RCT comparison(3) BSG(3) Safety.(3) ulcerative colitis(3) HBV-specific CD8+ cell response(2) cirrhosis(2) moderate(2) Tenofovir alafenamide(2) higher risk(2) multivariable analyses(2) Pneumonia(2) was used(2) risk factor(2) fatigue(2) COVID-19 in patient(2) Asymptomatic(2)