Severe exacerbations of chronic obstructive pulmonary disease: management with noninvasive ventilation on a general medicine ward. Italian Journal of Medicine, [S. l.], v. 4, n. 3, p. 173–178, 2013. DOI: 10.4081/itjm.2010.173. Disponível em: https://www.italjmed.org/ijm/article/view/itjm.2010.173. Acesso em: 2 jul. 2025.