1. Antwerp University Hospital, Department of Diabetology-Endocrinology, Wilrijkstraat 10, 2650 Edegem, Belgium
2. Antwerp University Hospital, Department of Genetics, Wilrijkstraat 10, 2560 Edegem, Belgium
3. AZ Nikolaas, Department of Diabetology-Endocrinology, Moerlandstraat 1, 9100 Sint-Niklaas, Belgium