Nutritional status of low income pregnant teen-agers.
D000293:Adolescent; D002136:Calcium, Dietary; D005260:Female; D006801:Humans; D007501:Iron; D008429:Maternal Welfare; D009748:Nutrition Disorders / Q000453:epidemiology*; D011203:Poverty; D011247:Pregnancy; D011488:Protein Deficiency / Q000453:epidemiology; D014481:United States; D014802:Vitamin A Deficiency / Q000453:epidemiology
D002136:Calcium, Dietary; D007501:Iron