1. The University of Texas Health Science Center at Houston School of Public Health, Houston, TX, USA
2. Michael E. DeBakey VA Medical Center, United States Department of Veterans Affairs, Center for Innovations in Quality Effectiveness and Safety, Houston, TX, USA
3. United States Department of Veterans Affairs, National Center on Homelessness among Veterans, Tampa, FL, USA
4. Department of Psychiatry, Yale University School of Medicine, New Haven, CT, USA
5. Center for Humanities & Ethics, The University of Texas Health Science Center Houston McGovern Medical School, Houston, TX, USA
6. Biometrics Department, Allucent, Houston, TX, USA