The frequency of breast feeding in a representative sample of women in a metropolitan area.
D001942:Breast Feeding; D001943:Breast Neoplasms / Q000209:etiology*; D005260:Female; D006801:Humans; D007223:Infant; D007227:Infant Nutritional Physiological Phenomena
BREAST NEOPLASMS/etiology and pathogenesis; INFANT NUTRITION