For citations:
Avdeev S.N., Popova K.A., Nekludova G.V., Chuchalin A.G. . PULMONOLOGIYA. 2011;(2):41-48. (In Russ.) https://doi.org/10.18093/0869-0189-2011-0-2-41-48
Avdeev S.N., Popova K.A., Nekludova G.V., Chuchalin A.G. . PULMONOLOGIYA. 2011;(2):41-48. (In Russ.) https://doi.org/10.18093/0869-0189-2011-0-2-41-48