[Breast feeding and socioeconomic level of Chilean infants under 1 year of age].
D000328:Adult; D001942:Breast Feeding; D002677:Chile; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008423:Maternal Age; D012959:Socioeconomic Factors; D014886:Weaning
Lactancia materna y nivel socioeconómico en lactantes chilenos menores de un año.