1. Division of Pediatrics; UZ Brussel Kinderziekenhuis; Vrije Universiteit Brussel; Brussels Belgium
2. Division of Pediatric Endocrinology; UZ Gent; Gent Belgium
3. Division of Pediatric Endocrinology; UZ Brussel Kinderziekenhuis; Vrije Universiteit Brussel; Brussels Belgium
4. Division of Pediatric Endocrinology; Cliniques Universitaires Saint Luc; Brussels Belgium
5. Division of Pediatric Endocrinology; UZ Leuven; Leuven Belgium
6. Division of Pediatric Endocrinology; CHU UCL Namur; Yvoir Belgium