For citations:

Ivanova N.A. Recurrent bronchial obstruction and asthma in children during the first five years of life. Rossiyskiy Vestnik Perinatologii i Pediatrii (Russian Bulletin of Perinatology and Pediatrics). 2016;61(5):64-69. (In Russ.) https://doi.org/10.21508/1027-4065-2016-61-5-64-69