1. Department of Social Welfare, UCLA Luskin School of Public Affairs, Los Angeles, California, USA
2. Gay Sexuality and Social Policy Initiative, UCLA Luskin School of Public Affairs, Los Angeles, California, USA
3. Hornet Social Network, Los Angeles, California, USA
4. Department of Health Policy and Management, UCLA Fielding School of Public Health, Los Angeles, California, USA
5. Community Health Systems Department, University of California San Francisco, San Francisco, California, USA
6. San Francisco Department of Public Health, Center of Public Health Research, San Francisco, California, USA
7. LGBT Foundation, San Francisco, California, USA