Evaluation of clinical and laboratory manifestations related to the gastrointestinal system and prognosis in hospitalized patients with COVID-19: a prospective cohort study. - Fernandes de Carvalho TH; Esberard FB; Holanda MC; de Paiva MV; de Almeida Beltrão DC; Carvalhal G; Lacerda Fernandes JF; Antunes de Brito CA (BMC infectious diseases, 2026)