For citations:
Avdeev S.N., Aisanov Z.R., Belevskiy A.S., Vizel' A.A., Zyryanov S.K., Ignatova G.L., Knyazheskaya N.P., Leshchenko I.V., Ovcharenko S.I., Sinopal'nikov A.I., Stepanyan I.E., Trofimov V.I. New opportunities for prevention of exacerbations of chronic obstructive pulmonary disease. Russian Respiratory Society Expert Opinion. PULMONOLOGIYA. 2017;27(1):108-113. (In Russ.) https://doi.org/10.18093/0869-0189-2017-27-1-108-113