1. Department of Pediatrics, Washington University in St. Louis, St. Louis, MO
2. Friedman School of Nutrition Science and Policy, Tufts University, Boston, MA
3. RTI International, Research Triangle Park, NC
4. School of Public Health and Family Medicine, and Department of Paediatrics and Child Health, University of Malawi, Blantyre, Malawi
5. Children's Nutrition Research Center, Baylor College of Medicine, Houston, TX
6. Department of Paediatrics and Child Health, University of Malawi, Blantyre, Malawi
7. Lao Friends Hospital for Children, Luang Prabang, Lao PDR