1. Department of Endocrinology, Diabetology & Metabolism, Antwerp University Hospital, Edegem, Belgium
2. Department of Endocrinology-Nephrology, Algemeen Ziekenhuis Klina Hospital, Brasschaat, Belgium
3. Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium
4. Department of Oncology, Antwerp University Hospital, Edegem, Belgium
5. Diabetes Research Center, Brussels Free University, Brussels, Belgium