Breast milk for all.
D000818:Animals; D001903:Bottle Feeding / Q000379:methods; D001942:Breast Feeding; D003906:Developing Countries; D005260:Female; D006266:Health Education; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008892:Milk / Q000032:analysis; D008895:Milk, Human / Q000032:analysis / Q000276:immunology