1. Department of Social Welfare, UCLA Luskin School of Public Affairs, Los Angeles, California, USA.
2. Department of Epidemiology, UCLA Fielding School of Public Health, Los Angeles, California, USA.
3. Benioff Homelessness and Housing Initiative, Department of Medicine, University of California San Francisco, San Francisco, California, USA.
4. Los Angeles LGBT Center, Los Angeles, California, USA.
5. School of Social Work, Tulane University, New Orleans, Louisiana, USA.