AHMAD, N.; ULLAH, I.; JAVAID, M.; KHATTAK, M. H. BEAD IN TRACHEOBRONCHIAL TREE: A THERAPEUTIC CHALLENGE. Journal of Postgraduate Medical Institute, [S. l.], v. 20, n. 3, 2011. Disponível em: https://www.jpmi.org.pk/index.php/jpmi/article/view/224. Acesso em: 28 apr. 2024.