Department of Gastroenterology and Hepatology,Hamad Medical Corporation,Doha 3050,Qatar;
ECPEExecutive and Continuing Professional Education,Harvard T.H Chan School of Public Health,Boston,MA 02115-5810,United States;
Department of Palliative Care,National Center for Cancer Care&Research,Hamad Medical Corporation,Doha 3050,Qatar;
Department of Medicine,Hamad Medical Corporation,Doha 3050,Qatar;
Department of Infectious Disease,Communicable Disease Center,Hamad Medical Corporation,Doha 3050,Qatar;
Department of Cardiology Research,Heart Hospital,Hamad Medical Corporation,Doha 3050,Qatar;
Department of Medicine,Division of Infectious Diseases,Weill Cornell Medical College,New York,NY 10075,United States;
Department of Medicine,Weill Cornell Medical College-Qatar,Doha 24144,Qatar;
COVID-19; Gastrointestinal manifestations; Mortality; Intensive care unit admission; Mechanical ventilation; Disease severity;