CHETAMBATH, R.; KATHIM, R. A.; IBRAHIM, R. Alpha-1-antitrypsin level as a predictor of acute exacerbations in chronic obstructive pulmonary disease: a prospective observational study. International Journal of Research in Medical Sciences, [S. l.], v. 12, n. 1, p. 124–128, 2023. DOI: 10.18203/2320-6012.ijrms20233986. Disponível em: https://www.msjonline.org/index.php/ijrms/article/view/12900. Acesso em: 13 oct. 2025.