1. University of Southern California, Keck School Of Medicine, Department of Preventive Medicine, Insutite of Prevention Researsch, Los Angeles, CA, USA
2. California State University, Northridge, College of Health and Human Development, Department of Health Sciences, Los Angeles, CA, USA
3. Department of Psychology, The University of Southern California, Los Angeles, California, USA
4. School of Social Work, The University of Southern California, Los Angeles, California, USA