Prevalence of Alpha-1 Antitrypsin Deficiency Among Patients with Early-Onset Chronic Obstructive Pulmonary Disease. The Insight, Dhaka, BD, v. 9, n. 3, p. 531–535, 2026. DOI: 10.5281/zenodo.21786036. Disponível em: https://www.bdjournals.org/insight/article/view/1352. Acesso em: 25 aug. 2026.