1. From the Institut National de la Sante´ et de la Recherche Me´dicale (INSERM), Research Unit U593 for Epidemiology, Public Health and Development, Universite´ Victor Segalen Bordeaux 2, Bordeaux, France;
2. INSERM, E361, Universite´ Montpellier Montpellier, France; the
3. Biochemistry Laboratory, Lapeyronie University Hospital, Montpellier, France; and
4. Research and Development, DSM Nutritional Products Ltd., Kaiseraugst, Switzerland.