title: [Cervical mucus as a biological sign of fertility and infertility].
authors.forename: J J
authors.initials: JJ
authors.lastname: Billings
mesh_terms: D001695:Biology; D002582:Cervix Mucus; D002584:Cervix Uteri; D019411:Clinical Laboratory Techniques; D003710:Demography; D003933:Diagnosis; D005193:Family Planning Services; D005298:Fertility; D005835:Genitalia; D005836:Genitalia, Female; D007246:Infertility; D010061:Ovulation Detection; D010827:Physiology; D011153:Population; D011157:Population Dynamics; D014566:Urogenital System; D014599:Uterus
keywords: Biology; Cervical Mucus--analysis; Cervix; Demographic Factors; Examinations And Diagnoses; Fertility; Genitalia; Genitalia, Female; Infertility; Laboratory Examinations And Diagnoses; Laboratory Procedures; Natural Family Planning; Ovulation Detection; Physiology; Population; Population Dynamics; Urogenital System; Uterus