1. Zvitambo Institute for Maternal and Child Health Research, Harare, Zimbabwe
2. Global Alliance for Improved Nutrition, Washington, DC, USA
3. Department of Epidemiology and Environmental Health, School of Public Health and Health Professions, University at Buffalo, Buffalo, NY, USA
4. Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
5. Division of Digestive Diseases, Department of Metabolism, Digestion, and Reproduction, Faculty of Medicine, Imperial College London, London, United Kingdom
6. School of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
7. Program in International Nutrition, Division of Nutritional Sciences, Cornell University, Ithaca, NY, USA
8. Blizard Institute, Queen Mary University of London, London, United Kingdom