title: [Incompetence of the cervix as a factor in abortion].
mesh_terms: D000028:Abortion, Induced / Q000209:etiology*; D000022:Abortion, Spontaneous; D002584:Cervix Uteri / Q000737:chemistry*; D005260:Female; D006801:Humans; D011247:Pregnancy
keywords: ABORTION/etiology; CERVIX UTERI/chemistry