1. Partners In Health Lesotho, Maseru, Lesotho; Department of Global Health and Social Medicine, Harvard Medical School, Boston, Massachusetts, USA
2. Partners In Health Lesotho, Maseru, Lesotho
3. Nutritional Intervention Research Unit, Medical Research Council, Tygerberg, Cape Town, South Africa
4. Division of Global Health Equity, Brigham and Women's Hospital, Boston, Massachusetts, USA
5. Department of Global Health and Social Medicine, Harvard Medical School, Boston, Massachusetts, USA; Division of Global Health Equity, Brigham and Women's Hospital, Boston, Massachusetts, USA; and Partners in Health, Boston, Massachusetts,
USA
6. Partners In Health Lesotho, Maseru, Lesotho; Division of Global Health Equity, Brigham and Women's Hospital, Boston, Massachusetts, USA