For citations:

Popova K.A., Avdeev S.N. Opportunities of non!invasive ventilation in chronic obstructive pulmonary disease patients with acute respiratory failure and hypercapnic coma. PULMONOLOGIYA. 2013;(1):108-111. (In Russ.) https://doi.org/10.18093/0869-0189-2013-0-1-108-111