title: [Change in behavior in breast feeding world-wide. 1920-1985 review].
abstract: Articles about lactation enquiries from 1920 to 1985 are revised by the authors in order to design a graphic showing the trends in different countries. Factors that have been related with changes in lactation performance practices are also studied.
mesh_terms: D001290:Attitude; D001942:Breast Feeding; D006801:Humans; D012923:Social Class; D012925:Social Conformity; D013997:Time Factors
vernacular_title: El cambio de conducta en el amamantamiento a nivel mundial. Revisión 1920-1985.