For citations:
Avdeev S.N. COPD as a systemic disease. PULMONOLOGIYA. 2007;(2):104-116. (In Russ.) https://doi.org/10.18093/0869-0189-2007-0-2-104-116
Avdeev S.N. COPD as a systemic disease. PULMONOLOGIYA. 2007;(2):104-116. (In Russ.) https://doi.org/10.18093/0869-0189-2007-0-2-104-116