1. VA Houston HSR&D Center of Excellence, Health Services Research and Development Service, Michael E. DeBakey Veterans Affairs Medical Center, Houston, TX, USA
2. VA South Central Mental Illness Research, Education and Clinical Center
3. Department of Psychiatry, Baylor College, Baylor College of Medicine, Houston, TX, USA
4. Mental Health Care Line, Michael E. DeBakey VA Medical Center, Houston, TX, USA