COVID-19(52) Patient(20) SARS-CoV-2(14) risk factor(13) Treatment(13) disease(13) patients(12) Mortality(11) analyzed(11) SARS-CoV-2.(11) reported(11) IBD(9) endoscopy(9) Hospitalization(9) Symptom(9) Chronic Hepatitis B(9) Inflammatory bowel disease(9) Hepatitis B virus(8) incidence(8) therapy(8) Liver injury(7) Infection(7) affected(7) patients treated(7) Liver damage(7) age(7) COVID-19 pandemic(7) Italy(7) Administered(6) Prevalence(6)