1. Departments of Clinical Biochemistry (J.K., T.T., L.M., N.B., A.R.) Ben-Gurion University of the Negev, Beer-Sheva 84103, Israel;
2. Department of Medicine (M.B., N.K.), University of Leipzig, D-04103 Leipzeig, Germany;
3. Department of Surgery A (B.K.) Soroka Medical Center, Beer-Sheva 84101, Israel;
4. Departments of Epidemiology (I.S., R.G.) Ben-Gurion University of the Negev, Beer-Sheva 84103, Israel;
5. International Center for Health and Nutrition (I.S., A.R.), Ben-Gurion University of the Negev, Beer-Sheva 84103, Israel;
6. Diabetes Unit (I.H.-B.), Soroka Medical Center, Beer-Sheva 84101, Israel;
7. Städtisches Klinikum Karlsruhe (M.R.S.), Clinic of Visceral Surgery, D-76133 Karlsruhe, Germany;
8. Jean Mayer Human Nutrition Research Center-U.S. Department of Agriculture Human Nutrition Research Center on Aging (A.S.G.), Tufts Univeristy, Boston, Massachusetts 02111;
9. Department of Biological Chemistry (Z.E.), The Weizmann Institute of Science, Rehovot 76100, Israel
10. National Institute of Biotechnology Negev (A.R.), Ben-Gurion University of the Negev, Beer-Sheva 84103, Israel;