title: [Breast feeding: psychosocial and biological influencing factors].
mesh_terms: D001942:Breast Feeding; D005260:Female; D006801:Humans; D007774:Lactation; D008425:Maternal Behavior; D011247:Pregnancy; D012959:Socioeconomic Factors
vernacular_title: Lactancia materna: algunos factores psicosociales y biológicos que la influencian.