For citations:

Shmeleva N.M., Sidorova V.P., Belevsky A.S., Shmelev E.I. Chronic obstructive pulmonary disease in ambulatory practice. PULMONOLOGIYA. 2008;(6):29-33. (In Russ.) https://doi.org/10.18093/0869-0189-2008-0-6-29-33