For citations:
Soe A.K., Avdeev S.N., Nuralieva G.S., Gaynitdinova V.V., Chuchalin A.G. Predictors of poor outcomes in acute exacerbations of chronic obstructive pulmonary disease. PULMONOLOGIYA. 2018;28(4):446-452. (In Russ.) https://doi.org/10.18093/0869-0189-2018-28-4-446-452