1. Department of Clinical Cell Biology and Medicine, Graduate School of Medicine; Chiba University; Chiba Japan
2. Department of Medicine, Division of Medical Genetics; University of Washington; Seattle Washington
3. Department of Pathology; University of Washington; Seattle Washington
4. Department of Human Genetics; University of Wuerzburg; Wuerzburg Germany
5. Institute of Human Genetics; University Medical Center Hamburg-Eppendorf; Hamburg Germany
6. Department of Pediatrics, Division of Genetic Medicine; University of Washington; Seattle Washington
7. Advocate Lutheran General Hospital and Advocate Children's Hospital; Park Ridge Illinois
8. The Genetics Institute, Rambam Health Care Campus and Rappaport School of Medicine; Technion - Israel Institute of Technology; Haifa Israel
9. Department of Internal Medicine, Division of Medical Genetics, Istanbul Medical Faculty; Istanbul University; Turkey
10. Department of Dermatology; Greys Hospital; Pietermaritzburg South Africa
11. Department of Neurology; Okayama City Hospital; Okayama Japan
12. Milestone Hospital; Rajkot India
13. Department of Medicine, Surgery and Neurosciences, Unit Clinical Neurology and Neurometabolic Diseases, Medical School; University of Siena; Siena Italy
14. Department of Dermatology; University of North Carolina; Chapel Hill North Carolina
15. Division of Genetics and Metabolism; Phoenix Children's Hospital; Phoenix Arizona
16. Division of Genetics; UMass Memorial Medical Center; Worcester Massachusetts
17. Department of Pediatric Genetics; Amrita Institute of Medical Sciences and Research Center; Kochi Kerala India
18. Department of Medicine; New York Medical College; Hawthorne New York
19. Division of Genetics; University of Maryland School of Medicine; Baltimore Maryland
20. Centro Médico Nacional 20 de Noviembre; ISSSTE; Mexico City Mexico
21. Genetic Health Service NZ; Wellington New Zealand
22. University Medical Center; Utrecht Netherlands
23. Department of Clinical Genetics; Podlaskie Medical Center; Bialystok Poland
24. Department of Perinatology; Medical University of Bialystok; Bialystok Poland