1. U.S. Department of Veterans Affairs National Center on Homelessness among Veterans Tampa Florida USA
2. Department of Management, Policy, and Community Health School of Public Health, University of Texas Health Science Center at Houston Houston Texas USA
3. South Central Mental Illness Research Education and Clinical Center (MIRECC) Houston, TX USA
4. South Texas Veterans Health Care System San Antonio Geriatric Research Education and Clinical Center (GRECC) San Antonio, TX USA