Obstetric problems of illegitimate pregnancy.
D003153:Community Health Services / Q000600:supply & distribution; D003267:Contraception; D005260:Female; D005313:Fetal Death / Q000453:epidemiology; D006266:Health Education; D006801:Humans; D007086:Illegitimacy; D007226:Infant Mortality; D007231:Infant, Newborn; D007234:Infant, Premature; D008423:Maternal Age; D010044:Outpatient Clinics, Hospital / Q000600:supply & distribution; D010298:Parity; D011247:Pregnancy; D012114:Residential Treatment; D012959:Socioeconomic Factors; D013223:Statistics as Topic; D014481:United States