SHARMA, A.; BHARDWAJ, M.; JAIN, P.; TAYAL, D. Observational study to characterize socio-demographic data and clinical presentation in patients with acute exacerbation of chronic obstructive pulmonary disease. International Journal of Research in Medical Sciences, [S. l.], v. 10, n. 6, p. 1349–1353, 2022. DOI: 10.18203/2320-6012.ijrms20221493. Disponível em: https://www.msjonline.org/index.php/ijrms/article/view/10764. Acesso em: 14 oct. 2025.