title: Registers.
mesh_terms: D005260:Female; D006801:Humans; D007821:Laryngeal Muscles / Q000502:physiology*; D008297:Male; D009132:Muscles / Q000502:physiology*; D010699:Phonation; D012737:Sex Factors; D013018:Sound Spectrography; D014132:Trachea / Q000502:physiology; D014827:Vocal Cords / Q000502:physiology; D014831:Voice; D014833:Voice Quality