For citations:
Basov A.A., Tsvirkun O.V., Gerasimova A.G., Rossoshanskaya N.V., Babenko V.N. Condition of Specific Immunity to Pertussis in Different Age Groups of Children. Epidemiology and Vaccinal Prevention. 2015;14(3):84-88. (In Russ.) https://doi.org/10.31631/2073-3046-2015-14-3-84-88