Yousuf, M., Assaduzzaman, K., Islam, M. S. and Mowla, S. N. (2013) “A Case report on non-invasive ventilation in the management of acute COPD exacerbation (AECOPD)”, KYAMC Journal, 2(1), pp. 152–155. doi: 10.3329/kyamcj.v2i1.13522.