1. Institute of Human Genetics, University Clinic Freiburg; Freiburg; Germany
2. Institut für Medizinische Genetik, Charité; Berlin; Germany
3. Institut für Humangenetik, Johannes-Gutenberg-Universität Mainz Klinikum; Mainz; Germany
4. MVZ Universitätsklinikum Tübingen; Tübingen; Germany
5. Human Genetics, Erasmus University; Rotterdam; The Netherlands
6. GENDIA, Antwerp; Belgium
7. Department of Clinical Genetics, University Hospital of Aarhus; Aarhus; Denmark
8. Department of Paediatrics, Visby Hospital, Visby; Sweden
9. Medical Genetics, Sydney Children's Hospital; Sydney; Australia
10. Clinical Genetics, Rigshospitalet, Copenhagen University Hospital, Copenhagen; Denmark
11. Institute of Human Genetics, Heidelberg University; Heidelberg; Germany
12. Department of Medical Genetics, Oslo University Hospital; Oslo; Norway
13. Institute of Human Genetics, Universtiy of Würzburg; Würzburg; Germany
14. Department of Clinical Genetics, Karolinska University Hospital Solna; Stockholm; Sweden
15. Mitteldeutscher Praxisverbund Humangenetik, Praxis Dresden am Kinderzentrum, Dresden; Germany
16. Centro de Análisis Genéticos; Zaragoza; Spain
17. Department of Genetics, Yale School of Medicine; New Haven; Connecticut
18. Klinik und Poliklinik für Mund-, Kiefer- und Gesichtschirurgie, Universitätsklinikum, Carl Gustav Carus an der Technischen Universität Dresden, Dresden; Germany
19. Clinical Institute of Medical Genetics, Department of, Obstetrics and Gynecology, University Medical Center Ljubljana, Ljubljana; Slovenia
20. Institute of Human Genetics, Westfälische Wilhelms-Universität Münster, Münster; Germany
21. Institut für Klinische Genetik, Medizinische Fakulität Carl Gustav Carus; Dresden; Germany
22. Institut für Humangenetik, Universitätsklinikum Essen, Essen; Germany
23. Center for Integrative Brain Research, Seattle Children's Research Institute; Seattle; Washington