For citations:

Mironova A.К., Pykov M.I., Vatolin K.V., Osmanov I.M. Integrated approach of follow-up observation of children under 3 years old born with very low and extremely low body weight. Rossiyskiy Vestnik Perinatologii i Pediatrii (Russian Bulletin of Perinatology and Pediatrics). 2020;65(1):122-127. (In Russ.) https://doi.org/10.21508/1027-4065-2020-65-1-122-127