1. Neurology Department, Neuroscience Centre King Fahad Specialist Hospital‐Dammam Dammam Saudi Arabia
2. Genetic Unit, Pathology and Laboratory Medicine Department King Fahad Specialist Hospital‐Dammam Dammam Saudi Arabia
3. Center for Applied Genomics (CAG) The Children's Hospital of Philadelphia Philadelphia Pennsylvania USA
4. Department of Pediatrics, The Perelman School of Medicine University of Pennsylvania Philadelphia Pennsylvania USA