[Experiences with the Shirodkar operation during pregnancy in habitual abortion and premature delivery].
D000026:Abortion, Habitual; D000028:Abortion, Induced / Q000601:surgery*; D023802:Cerclage, Cervical; D002584:Cervix Uteri / Q000601:surgery*; D005260:Female; D006801:Humans; D007234:Infant, Premature; D011247:Pregnancy; D047928:Premature Birth; D014599:Uterus
ABORTION/surgery; CERVIX UTERI/surgery; INFANT, PREMATURE