For citations:

Uzunova A.N., Onishcenko N.A. Analysis of the perinatal risk causes and the structure of pathology in premature children in Chelyabinsk, born with extremely low and very low body weight. Rossiyskiy Vestnik Perinatologii i Pediatrii (Russian Bulletin of Perinatology and Pediatrics). 2019;64(4):92-98. (In Russ.) https://doi.org/10.21508/1027-4065-2019-64-4-92-98