title: [Methodical and practical reliability of natural family planning].
authors.forename: C
authors.initials: C
authors.lastname: Sándor
mesh_terms: D000293:Adolescent; D000328:Adult; D003268:Contraception Behavior; D005193:Family Planning Services / Q000379:methods*; D005260:Female; D006801:Humans; D006814:Hungary; D008297:Male; D008597:Menstrual Cycle; D012746:Sexual Abstinence; D014944:World Health Organization
vernacular_title: A természetes családtervezés módszertani és használati megbízhatósága.