What is the hearing condition called presbycusis?  [electronic resource] 

 -  Health news (Waltham, Mass.)  Nov 2005 
 - 16 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>1081-5880 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Humans<br/>Presbycusis--etiology