title: [The very low birth-weight infant; analysis of mortality].
mesh_terms: D001034:Apgar Score; D005865:Gestational Age; D006801:Humans; D007226:Infant Mortality; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn
vernacular_title: Recién nacido de muy bajo peso de nacimiento; análisis de mortalidad.