00547naa#a2200169#i#450# EN\INFRA-M\bibl\5805 20251223120016.2 2075-4094 20150706b2015####ek#y0engy0150####ca RUS RU Morbidity and mortality of children with very low and extremely low body weight at birth: risk factors and ways to reduce them Journal article Moscow INFRA-M Academic Publishing LLC. 2015 0 с. Journal article local Lebedeva O. zh-szf.ru