1. The Prenatal Diagnosis and Medical Genetics Program, Department of Obstetrics and Gynecology; Mount Sinai Hospital, University of Toronto; Toronto Ontario Canada
2. Division of Clinical and Metabolic Genetics, Department of Pediatrics; The Hospital for Sick Children, University of Toronto; Toronto Ontario Canada
3. Department of Genetics; King Faisal Specialist Hospital and Research Center; Riyadh Saudi Arabia
4. Laboratory of Molecular Gerontology; National Institute on Aging, National Institutes of Health, NIH Biomedical Research Center; Baltimore Maryland
5. Cytogenomics Laboratory, Division of Genome Diagnostics, Department of Pediatric Laboratory Medicine; The Hospital for Sick Children, University of Toronto; Toronto Ontario Canada
6. Department of Clinical Genetics, Human Genetics and Genome Research Division; National Research Centre; Cairo Egypt
7. Department of Medical Genetics; King Faisal Specialist Hospital and Research Center; Riyadh Saudi Arabia
8. Division of Neuroradiology, Department of Diagnostic Imaging; The Hospital for Sick Children, University of Toronto; Toronto Ontario Canada
9. Department of Otolaryngology - Head & Neck Surgery; The Hospital for Sick Children, University of Toronto; Toronto Ontario Canada
10. Department of Radiology; King Abdulaziz University Hospital, King Saud University; Riyadh Saudi Arabia
11. Department of Anatomy and Cell Biology, College of Medicine; Alfaisal University; Riyadh Saudi Arabia
12. Saudi Human Genome Program; King Abdulaziz City for Science and Technology; Riyadh Saudi Arabia