The influence of socioeconomic status on incidence of low birth weight.
D001741:Black or African American; D001719:Birth Certificates; D001724:Birth Weight; D004522:Educational Status; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D008396:Maryland; D008423:Maternal Age; D010298:Parity; D011247:Pregnancy; D011295:Prenatal Care; D012923:Social Class; D012959:Socioeconomic Factors