Pathology

Family medicine

The Internet

World Wide Web

Library science

Alternative medicine

Pain management

Web site

Anesthesiology

Computer science

Pain medicine

Anesthesia

Medicine

Pain

aDepartments of Anesthesiology and Pain Medicine and bPsychiatry and Behavioral Sciences, University of Washington School of Medicine, Seattle, WA, United States cNational Institutes of Health, Bethesda, MD, United States *Corresponding author. Address: Department of Anesthesiology and Pain Medicine, University of Washington School of Medicine, Box 356540, Seattle, WA 98195-6560. Tel.: (206) 543 2568; fax: (206) 543 2958. E-mail address: [email protected] (J.C. Ballantyne). Sponsorships or competing interests that may be relevant to content are disclosed at the end of this article. Supplemental digital content is available for this article. Direct URL citations appear in the printed text and are provided in the HTML and PDF versions of this article on the journal's Web site (www.painjournalonline.com).

Refractory dependence on opioid analgesics