For citations:
Chuchalin A.G. Chronic obstructive pulmonary disease and co-morbidities. PULMONOLOGIYA. 2008;(2):5-14. (In Russ.) https://doi.org/10.18093/0869-0189-2008-0-2-5-14
Chuchalin A.G. Chronic obstructive pulmonary disease and co-morbidities. PULMONOLOGIYA. 2008;(2):5-14. (In Russ.) https://doi.org/10.18093/0869-0189-2008-0-2-5-14