ChinchillaOtitis MediaEar, MiddleDigestive SystemDigestive System NeoplasmsBasilar MembraneCochlear NerveDigestive System DiseasesTympanic MembraneCochleaCochlear Microphonic PotentialsEustachian TubeEar OssiclesHaemophilus influenzaeSemicircular CanalsOtitis Media with EffusionMycotoxicosisScala TympaniNasopharynxHaemophilus InfectionsAcoustic StimulationSoundAuditory ThresholdAcoustic Impedance TestsVestibular NerveDigestive System Physiological PhenomenaEar AuricleEar CanalBone ConductionAcoustics