[Fundamental study on factors of perinatal mortality-particularly fetal death (author's transl)].
D005260:Female; D005313:Fetal Death / Q000453:epidemiology / Q000209:etiology*; D006801:Humans; D007231:Infant, Newborn; D007236:Infant, Small for Gestational Age; D007564:Japan; D011247:Pregnancy