RENDÓN PORRAS, Alejandro et al. Upper digestive tract bleeding, approach for the general Practitioner. Medicina UPB, [S. l.], v. 41, n. 1, p. 67–74, 2022. DOI: 10.18566/medupb.v41n1.a09. Disponível em: https://revistas.upb.edu.co/index.php/medicina/article/view/7676. Acesso em: 4 jul. 2026.