1. 1Department of Oncology and Metabolism, Medical School, University of Sheffield, Sheffield, UK
2. 2The National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), National Institutes of Health, Bethesda, Maryland, USA
3. 3Department of Medicine IV, Klinikum University of Munich, Munich, Germany
4. 4Service d’Endocrinologie – Diabète et Nutrition, CHU de Bordeaux, Bordeaux, France