For citations:

Khodkevich P.E., Кulikova K.V., Gorev V.V., Deev I.A. The echographic characteristics of structural and functional development of organs and systems in children born with low birth weight, very low birth weight and extremely low birth weight. Russian Pediatric Journal. 2020;1(3):11-17. (In Russ.) https://doi.org/10.15690/rpj.v1i3.2170