1. Department of Pediatrics, Faculty of Medicine, King Abdulaziz University, Jeddah 21589, Saudi Arabia
2. Neuromuscular Medicine Unit, Department of Pediatrics, Faculty of Medicine, King Abdulaziz University Hospital, Jeddah 21589, Saudi Arabia
3. Faculty of Psychology, University of Edinburgh, Edinburgh EH10 5HF, UK
4. Department of Pediatrics, Ministry of Health, Bisha 67841, Saudi Arabia
5. Pediatric Neurology Unit, Department of Pediatrics, King Fahad Hospital, Albaha 65732, Saudi Arabia