Ponce, A Z <br/><br/>
The use of added erbium filtration in intraoral radiography.  [electronic resource] 

 -  Oral surgery, oral medicine, and oral pathology  Oct 1988 
 - 513-7 p.  digital 
<br/><br/> Publication Type: Comparative Study; Journal Article 
<br/><br/><label>ISSN: </label>0030-4220 
<br/><br/><label>Standard No.: </label>10.1016/0030-4220(88)90280-0  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Erbium<br/>Filtration--instrumentation<br/>Humans<br/>Models, Structural<br/>Radiation Dosage<br/>Radiography, Dental<br/>X-Ray Film