For citations:

Florinskaya E.B., Keshishyan E.S. Immunization of preterm infants. Rossiyskiy Vestnik Perinatologii i Pediatrii (Russian Bulletin of Perinatology and Pediatrics). 2021;66(6):6-16. (In Russ.) https://doi.org/10.21508/1027-4065-2021-66-6-6-16