1. A Comparison of the Abuse Liability of Tramadol, NSAIDs, and Hydrocodone in Patients with Chronic Pain 
Edgar H. Adams, ScD, Scott Breiner, MBA, Theodore J. Cicero, PhD, Anne Geller, MD, James A. Inciardi, PhD, Sidney H. Schnoll, MD, PhD, Edward C. Senay, MD, George E. Woody, MD 
Journal of Pain and Symptom Management 
Volume 31, Issue 5, Pages (May 2006)
DOI: /j.jpainsymman
Copyright © 2006 U.S. Cancer Pain Relief Committee Terms and Conditions

2. Fig. 1
Subject population, drug comparison groups. Numbers in parentheses are the actual numbers achieved vs. the target numbers.
Journal of Pain and Symptom Management  , DOI: ( /j.jpainsymman )
Copyright © 2006 U.S. Cancer Pain Relief Committee Terms and Conditions