Affiliation: | 1. Section of Medical Genetics, Children's Hospital, King Fahad Medical City, Riyadh, Kingdom of Saudi Arabia;2. Kuwait Medical Genetics Centre, Maternity Hospital, Safat, Kuwait;3. Department of Neurosciences and Pediatrics, Howard Hughes Medical Institute, University of California, San Diego, California;4. Department of Pathology and Clinical Laboratory Medicine, King Fahad Medical City, Riyadh, Kingdom of Saudi Arabia |