[The statistical studies on the imminence of abortus of immature birth and habitual abortion or immature birth].
D000026:Abortion, Habitual; D000022:Abortion, Spontaneous; D000033:Abortion, Threatened; D005260:Female; D006801:Humans; D007234:Infant, Premature; D011247:Pregnancy; D047928:Premature Birth
ABORTION, HABITUAL; ABORTION, THREATENED; INFANT, PREMATURE