For citations:
Protasov A.D., Zhestkov A.V., Kostinov M.P., Ryzhov A.A. Changes in sputum bacterial landscape after vaccination against Streptococcus pneumoniae, Haemophilus influenza type b and influenza in patients with chronic obstructive pulmonary disease. PULMONOLOGIYA. 2012;(5):23-27. (In Russ.) https://doi.org/10.18093/0869-0189-2012-0-5-23-27