Perinatal mortality surveys in an African teaching hospital: I. The past and present statistics.
D000293:Adolescent; D000328:Adult; D005260:Female; D005313:Fetal Death / Q000453:epidemiology*; D006801:Humans; D007226:Infant Mortality; D007231:Infant, Newborn; D009549:Nigeria; D011247:Pregnancy; D011446:Prospective Studies