title: T-tube for middle ear ventilation.
mesh_terms: D004432:Ear, Middle; D005064:Eustachian Tube; D006801:Humans; D007440:Intubation / Q000295:instrumentation*; D010033:Otitis Media / Q000601:surgery*; D012826:Silicone Elastomers; D014433:Tympanoplasty
chemical_list: D012826:Silicone Elastomers