1. Diabetes Research Center, Brussels Free University, Brussels, Belgium
2. Department of Clinical Biology, University Hospital Brussels (UZ Brussel), Brussels, Belgium
3. Department of Pediatrics, IU Center for Diabetes and Metabolic Disease, Indiana University School of Medicine, Indianapolis, Indiana
4. Department of Laboratory Medicine, AZ Delta, Roeselare, Belgium
5. Department of Endocrinology, University Hospitals Leuven – Katholieke Universiteit Leuven, Leuven, Belgium
6. Departments of Biochemistry and Molecular Biology, Medicine, and Cellular and Integrative Physiology, Indiana University School of Medicine, Indianapolis, Indiana