When pain treatment collides with addiction

References 

1. NIDA . Research eases concerns about use of opioids to relieve pain. NIDA Notes . 2000;15(1):
2. Definitions Related to the Use of Opioids for the Treatment of Pain. A consensus document from the American Academy of Pain Medicine, the American Pain Society, and the American Society of Addiction Medicine, © 2001 American Academy of Pain Medicine, American Pain Society and American Society of Addiction Medicine, www.ASAM.org