Selection of closed vs open technique for cholesteatomas.
D002781:Cholesteatoma / Q000601:surgery*; D004428:Ear Neoplasms / Q000601:surgery*; D004432:Ear, Middle / Q000601:surgery; D006801:Humans; D008416:Mastoid / Q000601:surgery; D008722:Methods; D011182:Postoperative Care; D014433:Tympanoplasty