Congenital absence of the cervix.
D002584:Cervix Uteri / Q000002:abnormalities*; D000013:Congenital Abnormalities; D005260:Female; D006801:Humans; D011247:Pregnancy; D014564:Urogenital Abnormalities; D014599:Uterus / Q000002:abnormalities
ABNORMALITIES; CERVIX, UTERINE/abnormalities; PREGNANCY