Attic perforation and acquired epidermoid cholesteatoma formation: methods of prevention.
D000293:Adolescent; D000328:Adult; D002781:Cholesteatoma / Q000517:prevention & control*; D004428:Ear Neoplasms / Q000517:prevention & control*; D004432:Ear, Middle / Q000601:surgery; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged