Williams, R G <br/><br/>
Tympanometric diagnosis of middle ear effusions.  [electronic resource] 

 -  The Journal of laryngology and otology  Nov 1977 
 - 959-962 p.  digital 
<br/><br/> Publication Type: Comparative Study; Journal Article 
<br/><br/><label>ISSN: </label>0022-2151 
<br/><br/><label>Standard No.: </label>10.1017/s0022215100084620  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Acoustic Impedance Tests<br/>Ear, Middle--surgery<br/>Humans<br/>Otitis Media--diagnosis