title: Cervical consistency in women of fertile age measured with a new mechanical instrument.
mesh_terms: D000328:Adult; D002584:Cervix Uteri / Q000033:anatomy & histology / Q000502:physiology*; D003280:Contraceptives, Oral, Synthetic; D004548:Elasticity; D004864:Equipment and Supplies; D004997:Ethinyl Estradiol; D005260:Female; D006801:Humans; D008598:Menstruation; D008722:Methods; D009644:Norgestrel; D010060:Ovulation; D010298:Parity; D011247:Pregnancy
chemical_list: D003280:Contraceptives, Oral, Synthetic; D009644:Norgestrel; D004997:Ethinyl Estradiol