1. Department of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at San Antonio, San Antonio, Texas
2. Research and Development Service, South Texas Veterans Health Care System, San Antonio, Texas
3. Crew Endurance Team, Naval Postgraduate School, Monterey, California
4. Wilford Hall Ambulatory Surgical Center, Joint Base San Antonio-Lackland, Texas
5. Department of Psychology, The University of Texas at San Antonio, San Antonio, Texas
6. Department of Psychology, University of Arizona, Tucson, Arizona
7. School of Nursing, The University of Texas Health Science Center at San Antonio, San Antonio, Texas
8. David Geffen School of Medicine at the University of California, Los Angeles, Los Angeles, California
9. Geriatric Research, Education and Clinical Center, VA Greater Los Angeles Healthcare System, Los Angeles, California
10. Department of Psychological Science, Kennesaw State University, Kennesaw, Georgia