For citations:

Sutovskaya D.V., Burlutskaya A.V., Dubova L.V., Krylova D.R. Immunological Protection of Individuals Aged 3 to 25 Years Against Pertussis: Regional Cross-Sectional Study. Current Pediatrics. 2021;20(1):62-66. https://doi.org/10.15690/vsp.v20i1.2237