1. a Los Angeles County Department of Public Health, HIV Epidemiology Program , Los Angeles , CA , USA
2. b Los Angeles County Department of Public Health, Office of AIDS Programs and Policy , Los Angeles , CA , USA
3. c AltaMed Health Services Corporation, Daniel V. Lara Clinic , Los Angeles , CA , USA
4. d Los Angeles County MLK-MACC , OASIS Clinic , Los Angeles , CA , USA