title: Chronic ear disease--the ultimate sound barrier.
authors.forename: R A
authors.initials: RA
authors.lastname: Jahrsdoerfer
mesh_terms: D002781:Cholesteatoma / Q000150:complications* / Q000601:surgery; D002908:Chronic Disease; D004427:Ear Diseases / Q000150:complications* / Q000601:surgery; D006311:Hearing Disorders / Q000209:etiology*; D006801:Humans