<affiliation wicri:level="2"><mods:affiliation>Authors Peil and Rha are with the Dept. of Nutrition & Food Science, Massachusetts institute of Technology, Cambridge, MA 02139. Author Barrett is with the Office of International Cooperation & Development, United States Dept. of Agriculture, Washington, DC 20250. Author Langer is affiliated with the Dept. of Nutrition & Food Science, M.I.T., Room 16–309, and the Dept. of Surgery, Children's Hospital Medical Center, Boston, MA 02115. Corresponce and reprint requests should be addressed to Dr. Robert Langer at his M.I.T. address.</mods:affiliation>
<country xml:lang="fr">États-Unis</country>
<placeName><region type="state">Massachusetts</region>
</placeName>
<wicri:cityArea>Authors Peil and Rha are with the Dept. of Nutrition & Food Science, Massachusetts institute of Technology, Cambridge, MA 02139. Author Barrett is with the Office of International Cooperation & Development, United States Dept. of Agriculture, Washington, DC 20250. Author Langer is affiliated with the Dept. of Nutrition & Food Science, M.I.T., Room 16–309, and the Dept. of Surgery, Children's Hospital Medical Center, Boston</wicri:cityArea>
</affiliation>