A Controlled Trial of Noninvasive Positive Pressure Ventilation (NIPPV) in Patients of COPD with Respiratory Failure. Bangladesh Critical Care Journal, [S. l.], v. 1, n. 2, p. 86–92, 2013. DOI: 10.3329/bccj.v1i2.17201. Disponível em: https://banglajol.info/index.php/BCCJ/article/view/17201. Acesso em: 2 jul. 2026.