1. San Francisco VA Health Care System, 4150 Clement Street, San Francisco, CA 94121, USA
2. New York Harbor VA Health Care System—Brooklyn Campus, 800 Poly Place, Brooklyn, NY 11209, USA
3. VA Center for Integrated Healthcare, University of Texas Health, San Antonio, 7703 Floyd Curl Drive, San Antonio, TX 78229,
4. Retired, Department of Veterans Affairs Central Office, 810 Vermont Avenue NW, Washington, DC 20571, USA