[Cervical factor as sole cause of sterility].
D002584:Cervix Uteri; D004194:Disease; D005260:Female; D006801:Humans; D007246:Infertility; D007247:Infertility, Female / Q000209:etiology*; D014591:Uterine Diseases; D014805:Vitamin B 12 / Q000031:analogs & derivatives
C413332:factor A; D014805:Vitamin B 12
CERVIX, UTERINE/diseases; STERILITY, FEMALE/etiology and pathogenesis
Factor cervical como causa unica de esterilidad.