For citations:

Savenko I.V., Boboshko M.Yu. Exudative otitis media in children: the main causes. Part I. Rossiyskiy Vestnik Perinatologii i Pediatrii (Russian Bulletin of Perinatology and Pediatrics). 2021;66(4):32-38. (In Russ.) https://doi.org/10.21508/1027-4065-2021-66-4-32-38