For citations:
Khanin A.L., Chernushenko T.I., Morozova G.V., Savelyeva I.A. Prevalence of respiratory symptoms and detection of chronic obstructive pulmonary disease in a mining town of Kuzbass region. PULMONOLOGIYA. 2012;(3):59-62. (In Russ.) https://doi.org/10.18093/0869-0189-2012-0-3-59-62