COVID-19(14) Patient(12) hospitalised(7) Analysis(7) pandemic(6) Mortality(6) outcome(6) less(5) COVID-19 pandemic(5) conducted(5) collected(5) hospital(5) diagnostic(5) Diagnosis(4) age(4) disease(4) Result(4) chronic liver disease(4) determine(4) Cohort(4) evaluated(4) Seven(4) performed(4) gastrointestinal symptoms(3) Chain Reaction(3) ulcerative colitis.(3) specimen(3) RT-PCR(3) polymerase chain reaction(3) ulcerative colitis(3)