Ear, MiddleCholesteatoma, Middle EarEarOtitis Media with EffusionEar OssiclesTympanic MembraneOtitis MediaEar DiseasesEar, InnerMiddle Ear VentilationEustachian TubeEar NeoplasmsEar CanalChinchillaAcoustic Impedance TestsEar, ExternalMalleusStapesOtoscopyMastoidTemporal BoneIncusHearing Loss, ConductiveOtologic Surgical ProceduresOssicular ProsthesisTympanoplastyStapediusBacterial Outer Membrane ProteinsRound Window, EarHearingTensor TympaniBone ConductionHaemophilus influenzaeHearing LossTympanic Membrane PerforationStapes SurgeryOtitis Media, SuppurativeCochleaCholesteatomaOtoacoustic Emissions, SpontaneousHaemophilus InfectionsEar CartilageStreptococcus pneumoniaeHearing Loss, Mixed Conductive-SensorineuralOtosclerosisNasopharynxPneumococcal InfectionsAudiometry, Pure-ToneOval Window, EarMiddle Cerebral ArteryMastoiditisRod Cell Outer SegmentVibrationAudiometryGerbillinaeSoundMucous MembraneEar AuricleReflex, AcousticMoraxella (Branhamella) catarrhalisInfarction, Middle Cerebral ArteryEvoked Potentials, Auditory, Brain StemAuditory ThresholdEaracheExudates and TransudatesLabyrinth DiseasesPressureAudiologyAcoustic StimulationAdenoidsNasopharyngeal DiseasesGlomus TympanicumMucin-5BCochlear DiseasesDisease Models, AnimalHearing DisordersBarotraumaGlomus Tympanicum TumorPerilymph