Factors associated with low birth weight. United States, 1976.
D000293:Adolescent; D000328:Adult; D004522:Educational Status; D005260:Female; D006801:Humans; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D011247:Pregnancy; D011996:Records; D014481:United States