[Abnormal size of the internal os and tendency to abortion].
D000028:Abortion, Induced / Q000209:etiology*; D000022:Abortion, Spontaneous; D002584:Cervix Uteri / Q000002:abnormalities*; D005260:Female; D006801:Humans; D011247:Pregnancy
ABORTION/etiology; CERVIX UTERI/abnormalities