1. Social Medicine and Health Inequalities
2. Infectious Disease, Brigham and Women's Hospital, Boston, Massachusetts
3. Partners in Health, Boston, Massachusetts
4. Socios en Salud Sucursal Peru, Lima, Peru
5. Division of Infectious Disease, Massachusetts General Hospital, Boston, Massachusetts
6. Department of Social Medicine, Harvard Medical School, Boston, Massachusetts
7. Instituto de Salud del Niño, Lima, Peru