ELTAYEB, Sara; ALJAGHBER, Hind; AL ASSAF, Omar; AL HAWAI, Abdulla; BANAMA, Mohammed. A case series on upper GI bleeding among patients admitted with COVID-19 infection. Journal of Health Informatics in Developing Countries, [S. l.], v. 16, n. 2, 2022. Disponível em: https://jhidc.org/index.php/jhidc/article/view/373. Acesso em: 11 jul. 2026.