1. Research Service, Veterans Affairs San Diego Healthcare System, San Diego, CA, USA
2. Department of Psychiatry, School of Medicine, University of California, San Diego, La Jolla, CA, USA
3. Veterans Medical Research Foundation, San Diego, CA, USA
4. San Diego State University/University of California, San Diego Joint Doctoral Program in Clinical Psychology, San Diego, CA, USA
5. Department of Radiology, School of Medicine, University of California, San Diego, La Jolla, CA, USA
6. Department of Neurosciences, School of Medicine, University of California, San Diego, La Jolla, CA, USA
7. Psychology Service, Veterans Affairs San Diego Healthcare System, San Diego, CA, USA