1. Institut de Recherche Interdisciplinaire en Biologie Humaine et moléculaire Université Libre de Bruxelles Brussels Belgium
2. Centre de Génétique Humaine Institut de Pathologie et de Génétique Gosselies Belgium
3. Department of Genetics Hôpital Erasme ULB Center of Human GeneticsUniversité Libre de Bruxelles Brussels Belgium
4. Hôpital Universitaire des Enfants Reine Fabiola (HUDERF) Université Libre de Bruxelles Brussels Belgium
5. Department of Medical Genetics Gülhane Faculty of Medicine & Gülhane Training and Research Hospital University of Health Sciences Turkey Ankara Turkey
6. University and University Hospital of Antwerp Antwerp Belgium
7. Centre Hospitalier Universitaire de Liège Liège Belgium
8. Center for Human Genetics University Hospitals Leuven Leuven Belgium
9. Universitair Ziekenhuis Brussel (UZ Brussel) Centrum Medische Genetica Universiteit Brussel (VUB) Brussels Belgium
10. Cliniques Universitaires Saint‐Luc Université Catholique de Louvain Brussels Belgium
11. Centre Hospitalier CHIREC Brussels Belgium
12. Universitair Ziekenhuis Gent Ghent Belgium
13. Department of Genetics APHP Robert Debré University Hospital Paris France
14. Department of Pediatrics Centre Hospitalier Universitaire d’Angers France
15. Department of Genetic Medicine and Development University of Geneva Genève Switzerland