Cervical factor in fertility regulation.
D002582:Cervix Mucus / Q000502:physiology*; D002584:Cervix Uteri / Q000473:pathology / Q000502:physiology*; D003267:Contraception; D005260:Female; D005298:Fertility; D006801:Humans; D008297:Male; D008598:Menstruation; D013083:Sperm Transport