VERMA, L.; BORANA, H.; DESAI, G.; TAK, S. Saber sheath trachea in chronic obstructive pulmonary disease patients. International Journal of Advances in Medicine, [S. l.], v. 6, n. 3, p. 989–990, 2019. DOI: 10.18203/2349-3933.ijam20192278. Disponível em: https://www.ijmedicine.com/index.php/ijam/article/view/1644. Acesso em: 2 jan. 2026.