For citations:
Romanenko V., Beikin Y., Somova A., Sbitneva N., Rozhkova T. Serological Characteristics of Pneumococci Isolated from Children with Acute Otitis Media in Sverdlovsk Region. Epidemiology and Vaccinal Prevention. 2017;16(3):33-38. (In Russ.) https://doi.org/10.31631/2073-3046-2017-16-3-33-38