1. UCL Queen Square Institute of Neurology, University College London, London, UK
2. Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health, University of Genoa, Genoa, Italy
3. Pediatric Neurology and Muscular Diseases Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy
4. Department of Medical Genetics, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
5. Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
6. Genetic Center of Khorasan Razavi, Mashhad, Iran
7. Department of Otorhinolaryngology Head and Neck Surgery, School of Medicine, University of Maryland, Baltimore, MD 21201, USA
8. Clinic for Special Children, Strasburg, PA, USA
9. Community Health Clinic, Topeka, IN, USA
10. Departments of Neurology and Pediatrics, Kennedy Krieger Institute, Johns Hopkins Medical Institutions, Baltimore, MD, USA
11. National Institute of Neuromotor System, Cairo, Egypt
12. Center for Genetic Diseases, Shaheed Zulfiqar Ali Bhutto Medical University, Pakistan Institute of Medical Sciences, Islamabad, Pakistan
13. National Centre of Excellence in Molecular Biology, University of the Punjab, Lahore 53700, Pakistan
14. Department of Neuroscience, Rady Children’s Institute for Genomic Medicine, Howard Hughes Medical Institute, University of California, San Diego, CA, USA
15. Medical Genetics Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
16. GeneDx, Gaithersburg, Maryland, USA
17. Clinical Genetics Department, Human Genetics and Genome Research Division, National Research Centre, Cairo 12311, Egypt
18. Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA
19. Department of Pediatrics, University of Wisconsin Hospitals and Clinics, Madison, WI, USA
20. Genetics and Molecular Biology Branch, National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland, USA