Breast feeding in the United States. Report of a 1966 national survey with comparable 1946 and 1956 data.
D001942:Breast Feeding / Q000266:history; D003270:Contraceptive Agents / Q000494:pharmacology; D005260:Female; D006306:Health Surveys; D049673:History, 20th Century; D006801:Humans; D007223:Infant; D007224:Infant Care; D007227:Infant Nutritional Physiological Phenomena; D007231:Infant, Newborn; D007774:Lactation; D008895:Milk, Human / Q000378:metabolism; D010287:Parent-Child Relations; D011247:Pregnancy; D011593:Psychology, Social; D013223:Statistics as Topic; D014481:United States
D003270:Contraceptive Agents