1. SDSU/UC San Diego Joint Doctoral Program in Clinical Pyschology, San Diego, CA, USA
2. Department of Psychology, San Diego State University, San Diego, CA, USA
3. Department of Psychology, University of Iceland, Reykjavik, Iceland
4. Division of Rheumatology, Cedars-Sinai Medical Center, Los Angeles, CA, USA
5. Department of Medicine, University of California, Los Angeles, CA, USA