Cholesteatoma, Middle EarCholesteatomaEar, MiddleOtitis MediaOtitis Media with EffusionTympanoplastyOtitis Media, SuppurativeMastoidEar DiseasesEar OssiclesEustachian TubeMiddle Ear VentilationTympanic MembraneOtologic Surgical ProceduresOtoscopyEar CanalTympanic Membrane PerforationAcoustic Impedance TestsChronic DiseaseOssicular ProsthesisOtitis ExternaDiagnostic Techniques, OtologicalTemporal BoneEarHaemophilus influenzaeChinchillaMastoiditisHearing Loss, ConductiveHearing LossEar NeoplasmsIncusPetrous BoneCochlear DiseasesEar, InnerOtitisProflavineOssicular ReplacementCerebrospinal Fluid OtorrheaSecond-Look SurgeryEar, ExternalMonocyte-Macrophage Precursor CellsHaemophilus InfectionsAudiometryPneumococcal InfectionsCulture MediaEcho-Planar ImagingCranial Fossa, MiddleAudiometry, Pure-ToneMalleusAcute DiseaseStapesStreptococcus pneumoniaeNasopharynxMoraxellaceae InfectionsMoraxella (Branhamella) catarrhalis