1. Diabetes Research Unit, Sheffield Teaching Hospitals, Sheffield, U.K.;
2. Department of Medicine, University of Manchester, Manchester, U.K.;
3. Department of Neurology, Mayo Clinic, Rochester Minnesota;
4. Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts;
5. Department of Medicine, University of Adelaide, Adelaide, Australia;
6. I Department of Medicine, Semmelweis University, Budapest, Hungary;
7. Neuromuscular Diseases Unit, Istituto Di Ricovero e Cura a Carattere Scientifico Foundation, “Carlo Besta” Neurological Institute, Milan, Italy;
8. Department of Internal Medicine, University of Tor Vergata, Rome, Italy;
9. Strelitz Diabetes Research Institutes, Eastern Virginia Medical School, Norfolk, Virginia;
10. Clinica Medica 1, Universita' di Pavia, Pavia, Italy;
11. Service d'Endocrinologie-Diabétologie-Nutrition, Hôpital Jean Verdier, Assistance Publique-Hôpitaux de Paris, Université Paris Nord, Center for Research in Human Nutrition, Ile-de-France, Bondy, France.