"The Pharmacology of Fentanyl and Its Impact on the Management of Pain" (2005)
By: Donald R. Taylor, M.D., Medical Director, Comprehensive Pain Care P.C., Marietta, Georgia

"Opioids and Treatment of Chronic Pain: Understanding Pain Patterns and the Role for Rapid-Onset Opioids" (2005)
by Steven Simon, M.D., RPh, Assistant Clinical Professor, Department of Physical Rehabilitation and Medicine, The University of Kansas, Lawrence; Assistant Clinical Professor, Department of Family Practice, The University of Health Sciences, Kansas City, Missouri; Medical Director, Rehabilitation Services, Shawnee Mission Medical Center, Mission, Kansas

Prevalence of Opioid Adverse Events in Chronic Non-malignant Pain: Systematic Review of Randomised Trials of Oral Opioids (2005)
by R. Andrew Moore and Henry J. McQuay, Pain Research and Nuffield Department of Anaesthetics, University of Oxford, Oxford Radcliffe Hospital, Oxford, UK