For citations:
Chernyak A.V. Functional diagnosis of chronic obstructive pulmonary disease. PULMONOLOGIYA. 2013;(3):111-116. (In Russ.) https://doi.org/10.18093/0869-0189-2013-0-3-111-116
Chernyak A.V. Functional diagnosis of chronic obstructive pulmonary disease. PULMONOLOGIYA. 2013;(3):111-116. (In Russ.) https://doi.org/10.18093/0869-0189-2013-0-3-111-116