1. RAND Corporation, Santa Monica, CA, USA
2. Department of Psychiatry and Behavioral Sciences, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
3. School of Social Work, University of Southern California, Los Angeles, CA, USA
4. RAND Corporation, Pittsburgh, PA, USA
5. Department of Psychology, Loyola Marymount University, Los Angeles, CA, USA
6. RAND Corporation, Arlington, VA, USA