Must we reduce pain intensity to treat chronic pain?

Departments of aPsychiatry and Behavioral Sciences and bAnesthesiology and Pain Medicine, University of Washington, Seattle, WA, USA Corresponding author. Address: Psychiatry and Behavioral Sciences, University of Washington, Box 356560, Seattle, WA 98195, USA. Tel.: (206) 685-3184; fax: (206) 221-5414. E-mail address: email protected (M. D. Sullivan). Sponsorships or competing interests that may be relevant to content are disclosed at the end of this article. Received May 17, 2015 Received in revised form July 24, 2015 Accepted August 12, 2015