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In the third paragraph of the Editor's Choice (“Aspiring to be global”) of 11 August we twice referred to infants aged under 3 months in relation to breast feeding in Latin America. We should have said “infants aged under 4 months” as described in the paper by Ana P Betrán and colleagues (“Ecological study of effect of breast feeding on infant mortality in Latin America”), pp 303-6 of the same issue.
