1. American Psychiatric Association 2010 DSM-V Development, http://www.dsm5.org/ProposedRevisions/Pages/Default.aspx , accessed April 4, 2010.
2. American Psychiatric Association 2000 Diagnostic and Statistical Manual. 4th Edition, revised. Washington, DC: APA Press.
3. Aronoff, Gerald 1985 Evaluation and Treatment of Chronic Pain. Baltimore: Urban and Schwarzenberg.
4. Bajwa, Zahid, Thomas Simopoulos, Joshua Pal, Jan Kraemer, Pradeep Chopra, Jyotsna Nagda, Umer Najib, James Celestin, Khuram Sial, Bilal Ahmad, Carol Warfield, Theodore I. Steinman, and Joshua Wootton 2009 Low and Therapeutic Doses of Antidepressants are Associated with Similar Response in the Context of Multimodal Treatment of Pain. Pain Physician 12:893–900.
5. Baszanger, Isabelle 1998 Inventing Pain Medicine: From the Laboratory to the Clinic. New Brunswick, NJ: Rutgers University Press.