1. INSERM UMR 1033, Hôpital Edouard Herriot, University of Lyon, Pavillon F, Place d’Arsonval, 69437 Lyon, France
2. Department of Endocrinology, University Hospital Ghent, B-9000 Gent, Belgium
3. Department of Medicine, Endocrinology, Diabetology & Clinical Nutrition, Oregon Health & Science University, Portland, OR 97239, USA