1. Section of Medical Genetic; Pediatric Department, Children's Hospital, King Fahad Medical City; Riyadh Saudi Arabia
2. Department of Medical Genetics; Neuroscience Centre, King Fahad Medical City; Riyadh Saudi Arabia
3. College of Medicine; Alfaisal University; Riyadh Saudi Arabia
4. Department of Biostatistics, Epidemiology and Scientific Computing; Neuroscience Centre, King Fahad Medical City; Riyadh Saudi Arabia
5. Department of Genetics, King Faisal Specialist Hospital and Research Centre; Neuroscience Centre, King Fahad Medical City; Riyadh Saudi Arabia
6. Department of Pediatric Neurology; Neuroscience Centre, King Fahad Medical City; Riyadh Saudi Arabia
7. College of Science; King Saud University; Riyadh Saudi Arabia