title: "Open" or "closed" technique in surgery of the middle ear.
mesh_terms: D001299:Audiometry; D016025:Bone Transplantation; D002781:Cholesteatoma / Q000601:surgery; D004424:Ear Canal / Q000601:surgery; D004432:Ear, Middle / Q000601:surgery*; D006309:Hearing; D006801:Humans; D008722:Methods; D010033:Otitis Media / Q000601:surgery; D011379:Prognosis; D014182:Transplantation, Autologous; D014207:Trephining; D014433:Tympanoplasty