For citations:
Kostinov M.P., Protasov А.D., Zhetkov А.V., Shteyner M.L., Tezikov Yu.V., Lipatov I.S. The Effect of Different Regimens of Vaccination against Pneumococcal Infection on the Clinical Course of Chronic Obstructive Pulmonary Disease: Focus on Changes in Sputum Microorganism Population. Tuberculosis and Lung Diseases. 2021;99(7):7-17. (In Russ.) https://doi.org/10.21292/2075-1230-2021-99-7-7-17