1. Stanford University School of Medicine, Stanford, CA, USA
2. University of Michigan, Ann Arbor, MI, USA
3. University of Sydney, Westmead, Australia
4. University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
5. Karolinska Institute, Stockholm, Sweden
6. Harvard School of Medicine, Boston, MA, USA
7. A Foundation Building Strength, Palo Alto, CA, USA
8. Seattle Children’s Hospital, Seattle, WA, USA
9. Bambino Gesu’ Children’s Research Hospital, Rome, Italy
10. National Institutes of Health, Bethesda, MD, USA
11. Washington University School of Medicine, St Louis, MO, USA
12. Hôpital Raymond Poincaré, Garches, France
13. Federal University of Minas Gerais, Belo Horizonte, Brazil
14. The Children’s Hospital of Philadelphia, Philadelphia, PA, USA
15. Evelina Children’s Hospital, London, UK
16. Children’s National Medical Center, Washington, DC, USA
17. University of Western Australia, Nedlands, Australia
18. Dubowitz Neuromuscular Centre, London, UK
19. University of New Mexico School of Medicine, Albuquerque, New Mexico
20. University of Florida, Gainesville, FL, USA
21. National Resource Centre for Oral Health in Rare Medical Conditions, Oslo Norway
22. University of Sao Paulo, Sao Paulo, Brazil