Harden, R N <br/><br/>
The use of opioids in treatment of chronic pain: an examination of the ongoing controversy.  [electronic resource] 

 -  Journal of back and musculoskeletal rehabilitation  Jan 1997 
 - 155-80 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>1053-8127 
<br/><br/><label>Standard No.: </label>10.3233/BMR-1997-9207  doi