1. VA Rocky Mountain Mental Illness Research, Education and Clinical Center for Suicide Prevention, Rocky Mountain Regional VA Medical Center, Aurora, Colorado, USA
2. Department of Psychiatry, University of Colorado Anschutz Medical Campus, School of Medicine, Aurora, Colorado, USA
3. Mental Health, San Francisco Veterans Affairs Health Care System, San Francisco, California, USA
4. Department of Psychiatry and Behavioral Sciences, University of California San Francisco, School of Medicine, San Francisco, California, USA