1. Laboratory for Pediatric Brain Diseases, Howard Hughes Medical Institute; The Rockefeller University; New York City New York
2. Division of Human Genetics and Genome Research, Department of Clinical Genetics; National Research Centre; Cairo Egypt
3. Pediatric Department; Al-Jahra Hospital; Jahra City Kuwait
4. Rady Children's Hospital, Department of Pediatrics, Sharp Mary Birch Hospital; University of California San Diego School of Medicine; San Diego California
5. Division of Medical Genetics, Department of Medicine; University of California San Diego School of Medicine; San Diego California