title: OPERATIVE TREATMENT OF THE INSUFFICIENT OSTIUM UTERI DURING PREGNANCY.
mesh_terms: D000033:Abortion, Threatened; D002584:Cervix Uteri; D005260:Female; D005313:Fetal Death; D006801:Humans; D007234:Infant, Premature; D007744:Obstetric Labor Complications; D011247:Pregnancy; D011248:Pregnancy Complications; D013514:Surgical Procedures, Operative
keywords: ABORTION, THREATENED; CERVIX UTERI; FETAL DEATH; INFANT, PREMATURE; LABOR COMPLICATIONS; PREGNANCY; PREGNANCY COMPLICATIONS; SURGERY, OPERATIVE