Trends in breast feeding among American mothers.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D001942:Breast Feeding; D004522:Educational Status; D004651:Employment; D005006:Ethnicity; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008393:Marriage; D009790:Occupations; D010298:Parity; D011203:Poverty; D011247:Pregnancy; D012067:Religion; D012424:Rural Population; D013223:Statistics as Topic; D014481:United States