Helfer, Allen <br/><br/>
To revise or retreat--your choice.  [electronic resource] 

 -  Journal of endodontics  Dec 2002 
 - 799 p.  digital 
<br/><br/> Publication Type: Letter 
<br/><br/><label>ISSN: </label>0099-2399 
<br/><br/><label>Standard No.: </label>10.1097/00004770-200212000-00001  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Humans<br/>Retreatment<br/>Root Canal Therapy<br/>Terminology as Topic