Ripening of the cervix.
D000818:Animals; D002584:Cervix Uteri / Q000033:anatomy & histology / Q000502:physiology*; D004967:Estrogens / Q000502:physiology; D005260:Female; D006801:Humans; D007751:Labor, Induced; D011247:Pregnancy; D011453:Prostaglandins / Q000502:physiology / Q000627:therapeutic use; D011458:Prostaglandins E / Q000502:physiology; D011460:Prostaglandins F / Q000502:physiology; D012065:Relaxin / Q000502:physiology
D004967:Estrogens; D011453:Prostaglandins; D011458:Prostaglandins E; D011460:Prostaglandins F; D012065:Relaxin