For citations:

Chuchalin A.G., Belevsky A.S., Chernyak B.A., Alexeeva Ya.G., Trofimenko I.N., Zaitseva A.S. Quality of life in chronic obstructive pulmonary disease patients in Russia: results of “IKAR-COPD” multi-center population-based study. PULMONOLOGIYA. 2005;(1):93-102. (In Russ.) https://doi.org/10.18093/0869-0189-2005-0-1-93-102