Otitis MediaOtitis Media with EffusionOtitis ExternaOtitis Media, SuppurativeOtitisEar, MiddleChinchillaMiddle Ear VentilationEustachian TubeOtoscopyHaemophilus influenzaeMastoiditisHaemophilus InfectionsTympanic Membrane PerforationPneumococcal InfectionsLabyrinthitisAcute DiseaseTympanic MembraneAcoustic Impedance TestsMoraxellaceae InfectionsHearing Loss, ConductiveEar CanalEar DiseasesCholesteatoma, Middle EarAmoxicillin-Potassium Clavulanate CombinationTranslatingTympanoplastyAmoxicillinOtoscopesAdenoidsMastoidRespiratory Tract InfectionsMalasseziaHearing LossEaracheSulfisoxazoleDiagnostic Techniques, OtologicalCerumenRecurrenceAdenoidectomyVaccines, ConjugateNeisseriaceae InfectionsDermatomycosesMyringoplastySinusitisOtologic Surgical ProceduresChild Day Care CentersNasopharyngeal DiseasesRhabdomyosarcomaAzithromycinChronic DiseaseTemporal BoneCefaclorBenzethoniumExudates and TransudatesXylitolMucous MembraneOtorhinolaryngologic DiseasesAudiometryBacterial InfectionsDisease Models, AnimalAntibodies, BacterialEar OssiclesStreptolysinsCefuroxime