[On the hearing threshold cycle and phase relation of air conduction and bone conduction in the 24-hour rhythm].
D001844:Bone Conduction; D006309:Hearing / Q000502:physiology*; D006320:Hearing Tests; D006801:Humans; D010507:Periodicity; D013564:Sympathetic Nervous System / Q000502:physiology*
HEARING/physiology; PERIODICITY; SYMPATHETIC NERVOUS SYSTEM/physiology