A pulmonary arteriovenous shunt hypoxemia and recurrent bleeding in the emergency department: a case report. Emergency Care Journal, [S. l.], 2026. DOI: 10.4081/ecj.2026.14832. Disponível em: https://www.pagepressjournals.org/ecj/article/view/14832. Acesso em: 12 may. 2026.