1. The Clinical Implications of Cytochrome P450 Interactions With Opioids and Strategies for Pain Management 
Michael J. Brennan, MD 
Journal of Pain and Symptom Management 
Volume 44, Issue 6, Pages S15-S22 (December 2012)
DOI: /j.jpainsymman
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2. Fig. 1
Patient concerns about the health system in a national survey by the American Society of Health-System Pharmacists.15
Journal of Pain and Symptom Management  , S15-S22DOI: ( /j.jpainsymman )
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3. Fig. 2 Example of the metabolism of opioids.17
Reprinted with permission from Gourlay DL, Heit HA, Caplan YH. Urine drug testing in clinical practice: the art and science of patient care. Stamford, CT: PharmaCom Group, Inc., 2010.
Journal of Pain and Symptom Management  , S15-S22DOI: ( /j.jpainsymman )
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