Kalus, R <br/><br/>
Sinusitis: more than a headache.  [electronic resource] 

 -  Journal of the South Carolina Medical Association (1975)  Jan 1992 
 - 37 p.  digital 
<br/><br/> Publication Type: Comment; Letter 
<br/><br/><label>ISSN: </label>0038-3139 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Humans<br/>Paranasal Sinuses<br/>Voice Quality