Hadler, Nortin M <br/><br/>
Medium-firm mattresses reduced pain-related disability more than firm mattresses in chronic, nonspecific low-back pain.  [electronic resource] 

 -  ACP journal club   
 - 12 p.  digital 
<br/><br/> Publication Type: Comment; Journal Article 
<br/><br/><label>ISSN: </label>1056-8751