1. Director of Immigrant Health, North East Medical Services, San Francisco, California, USA
2. Immigrant Health Program Associate, North East Medical Services, San Francisco, California, USA
3. Research Coordinator, North East Medical Services, San Francisco, California, USA
4. Assistant Clinical Professor of Hospital Medicine, School of Medicine, University of California, San Francisco, San Francisco, California, USA
5. Associate Professor of Medicine and Epidemiology, Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of California, San Francisco, San Francisco, California, USA
6. Director and Tuberculosis Controller, Tuberculosis Prevention and Control Section, San Francisco Department of Public Health, San Francisco, California, USA