[Tympanoplasty and postoperative cholesteatoma--studies following repeat surgery].
D002781:Cholesteatoma / Q000209:etiology* / Q000601:surgery; D004427:Ear Diseases / Q000209:etiology* / Q000601:surgery; D006801:Humans; D007049:Iatrogenic Disease; D011183:Postoperative Complications; D014433:Tympanoplasty / Q000009:adverse effects*