1. National Center on Homelessness Among Veterans, U.S. Department of Veterans Affairs (VA), Washington, D.C. (Tsai); School of Public Health, University of Texas Health Science Center at Houston, Houston (Tsai); Department of Psychology, University of Iowa, Iowa City (McCleery); VA Greater Los Angeles Healthcare System, Los Angeles (Wynn, Green); Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, Los Angeles (Wynn, Green).