Ear, MiddleEarCholesteatoma, Middle EarEar, InnerEar OssiclesOtitis Media with EffusionEar, ExternalEar DiseasesTympanic MembraneEar CanalOtitis MediaMiddle Ear VentilationEustachian TubeEar NeoplasmsChinchillaAcoustic Impedance TestsMalleusStapesTemporal BoneOtoscopyMastoidHearing Loss, ConductiveIncusOtologic Surgical ProceduresOssicular ProsthesisTympanoplastyStapediusRound Window, EarHearingBone ConductionTensor TympaniEar AuricleHearing LossEar CartilageHaemophilus influenzaeTympanic Membrane PerforationCochleaStapes SurgeryOtitis Media, SuppurativeOtoacoustic Emissions, SpontaneousCholesteatomaAudiometry, Pure-ToneOtosclerosisOval Window, EarStreptococcus pneumoniaeHaemophilus InfectionsAudiometryNasopharynxHearing Loss, Mixed Conductive-SensorineuralLabyrinth DiseasesPneumococcal InfectionsSoundMastoiditisVibrationMiddle Cerebral ArteryAuditory ThresholdGerbillinaeEvoked Potentials, Auditory, Brain StemEaracheReflex, AcousticEar Deformities, AcquiredMucous MembraneMoraxella (Branhamella) catarrhalisAcoustic StimulationAudiologyInfarction, Middle Cerebral ArteryExudates and TransudatesPressureHearing DisordersHearing Loss, SensorineuralOtitisPerilymphCochlear DiseasesAdenoidsNasopharyngeal DiseasesHearing TestsGlomus TympanicumAcousticsMucin-5BBarotraumaLabyrinthine FluidsDisease Models, AnimalDeafness