1. Department of Pediatrics, Division of Pediatric Nephrology and Rheumatology, Ghent University Hospital, Ghent, Belgium
2. Department of Pediatrics, Division of Pediatric Endocrinology and Diabetology, Ghent University Hospital, Ghent, Belgium
3. Department of Pediatrics, Division of Pediatric Hemato-oncology and Stem Cell Transplantation, Ghent University Hospital, Ghent, Belgium
4. Cancer Research Institute Ghent (CRIG), Ghent, Belgium
5. Department of Pediatrics, Division of Pediatric Neurology and Metabolic Disease, Ghent University Hospital, Ghent, Belgium
6. Center for Medical Genetics, Ghent University Hospital, Ghent, Belgium
7. Department of Ophtalmology, Ghent University Hospital, Ghent, Belgium