title: [Premature infants at the Hospital Clinico de Concepcion (1954-1959)].
mesh_terms: D002648:Child; D006761:Hospitals; D006801:Humans; D007223:Infant; D007226:Infant Mortality; D007231:Infant, Newborn; D007234:Infant, Premature / Q000706:statistics & numerical data*
keywords: INFANT MORTALITY; INFANT, PREMATURE/statistics