For citations:
Briko N.I., Korshunov V.A., Vasilyeva I.A., Vorobieva A.D. Vaccination against pneumococcal infection in adults from risk groups. Tuberculosis and Lung Diseases. 2020;98(5):15-23. (In Russ.) https://doi.org/10.21292/2075-1230-2020-98-5-15-23