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