1. Partners In Health, Freetown, Sierra Leone;
2. Department of Medicine, University of California, San Francisco, San Francisco, California;
3. Division of Global Health Equity, Brigham and Women’s Hospital, Boston, Massachusetts;
4. Department of Global Health and Social Medicine, Harvard Medical School, Boston, Massachusetts;
5. Division of Biostatistics, School of Public Health, University of California, Berkeley, Berkeley, California;
6. Institute for Global Health Sciences, University of California, San Francisco, California