Behavioral Comorbidities in Rheumatoid Arthritis: A Psychoneuroimmunological Perspective.

Dr Irwin is Norman Cousins Professor in the department of psychiatry and biobehavioral sciences in the David Geffen School of Medicine, University of California, Los Angeles (UCLA), and director and senior research scientist at the Cousins Center for Psychoneuroimmunology UCLA Semel Institute for Neuroscience and Human Behavior. Dr Davis is professor and Dr Zautra is foundation professor in the department of psychology at Arizona State University, Tempe. The authors report no conflicts of interest concerning the subject matter of this article.