[Incidence of breast feeding, based on age and its relation to the nutritional status].
D000367:Age Factors; D001942:Breast Feeding; D002677:Chile; D005260:Female; D006801:Humans; D007223:Infant; D007225:Infant Food / Q000592:standards; D007228:Infant Nutrition Disorders / Q000453:epidemiology*; D007231:Infant, Newborn; D008297:Male; D008722:Methods; D011247:Pregnancy; D012959:Socioeconomic Factors
Frecuencia de la lactancia natural según edad y su relación con el estado nutritivo.