1. INSERM U342, St. Vincent de Paul Hospital, Paris, France
2. Department of Endocrinology & Metabolism, Hebrew University Hadassah Medical Center, Jerusalem, Israel
3. Department of Molecular Medicine, Division of Endocrinology & Diabetes, Karolinska Hospital, Stockholm, Sweden
4. Department of Physiology, Endocrinology-Metabolism, Université Catholique de Louvain, Brussels, Belgium
5. Department of Biochemistry and Molecular Biology, and Howard Hughes Medical Institute, University of Chicago, Chicago, Illinois
6. Metabolism Unit, CNR Institute of Clinical Physiology, University of Pisa, Pisa, Italy