1. Department of PaediatricsThe Hospital for Sick Children and University of Toronto Toronto Ontario Canada
2. Department of PediatricsDell Medical School at the University of Texas at Austin Austin Texas
3. NYU Winthrop Hospital Mineola New York
4. The Sackler Institute for Nutrition ScienceThe New York Academy of Sciences New York New York
5. Bill & Melinda Gates Foundation Seattle Washington
6. Retired, U.S. Food and Drug Administration Silver Spring Maryland
7. Cork Centre for Vitamin D and Nutrition ResearchUniversity College Cork Cork Ireland
8. Tufts University Medford Massachusetts
9. Nutrition International Ottawa Ontario Canada
10. on the basis of Centers for Disease Control and Prevention Atlanta Georgia
11. MRC Elsie Widdowson Laboratory Cambridge United Kingdom
12. Independent Contractor New York New York
13. Blizard Institute, Queen Mary University of London London United Kingdom
14. Global Alliance for Improved Nutrition Geneva Switzerland
15. Mayo Clinic Rochester Minnesota
16. University of Saskatchewan Saskatoon Saskatchewan Canada