Wasan, Ajay D <br/><br/>
The association between negative affect and opioid analgesia in patients with discogenic low back pain.  [electronic resource] 

 -  Pain  Oct 2005 
 - 450-461 p.  digital 
<br/><br/> Publication Type: Comparative Study; Journal Article; Randomized Controlled Trial 
<br/><br/><label>ISSN: </label>0304-3959 
<br/><br/><label>Standard No.: </label>10.1016/j.pain.2005.08.006  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Adult<br/>Aged<br/>Analgesics, Opioid--administration & dosage<br/>Analysis of Variance<br/>Behavioral Symptoms--drug therapy<br/>Case-Control Studies<br/>Cross-Over Studies<br/>Demography<br/>Disability Evaluation<br/>Double-Blind Method<br/>Female<br/>Humans<br/>Injections, Intravenous--methods<br/>Linear Models<br/>Low Back Pain--classification<br/>Male<br/>Middle Aged<br/>Models, Psychological<br/>Morphine--administration & dosage<br/>Pain Measurement<br/>Pain Threshold--drug effects<br/>Personality Inventory--statistics & numerical data<br/>Placebo Effect<br/>Psychological Tests<br/>Sickness Impact Profile<br/>Treatment Outcome