title: [Cyclicly dependent variations in efficiency of the voice and its influencing by ovulation inhibitors].
mesh_terms: D000328:Adult; D002715:Chlormadinone Acetate / Q000494:pharmacology*; D003276:Contraceptives, Oral / Q000494:pharmacology*; D005260:Female; D006801:Humans; D008598:Menstruation; D008656:Mestranol / Q000494:pharmacology; D010060:Ovulation / Q000187:drug effects; D014831:Voice / Q000187:drug effects*
chemical_list: D003276:Contraceptives, Oral; D002715:Chlormadinone Acetate; D008656:Mestranol
vernacular_title: Zyklusabhängige Leistungsschwankungen der Stimme und ihre Beeinflussung durch Ovulationshemmer.