[1] King Saud bin Abdulaziz Univ Hlth Sci KSAU HS, Coll Med, Riyadh, Saudi Arabia
[2] King Abdullah Specialist Childrens Hosp KASCH, Div Pediat Neurol, Natl Guard Hlth Affairs NGHA, Riyadh, Saudi Arabia
[3] Minist Natl Guard, King Abdullah Int Med Res Ctr KAIMRC, Riyadh 11481, Saudi Arabia
[4] King Fahad Med City KFMC, Dept Pediat, Riyadh, Saudi Arabia
[5] King Abdulaziz Univ, Fac Med, Dept Pediat, Jeddah, Saudi Arabia
[6] King Fahad Specialist Hosp, Neurosci Ctr, Dept Pediat Neurol, Dammam, Saudi Arabia
[7] Qatif Cent Hosp, Dept Pediat, Med Genet Unit, Eastern Hlth Cluster,Minist Hlth, Qatif, Saudi Arabia
[8] King Fahad Med City KFMC, Dept Pediat Neurol, Natl Neurosci Inst, Riyadh, Saudi Arabia
[9] Johns Hopkins Aramco Healthcare Jhah, Women & Child Inst, Dhahran, Saudi Arabia
[10] Johns Hopkins Sch Med, Baltimore, MD USA
[11] King Abdullah Univ Sci & Technol KAUST, Thuwal, Saudi Arabia
[12] John Hokins Aramco Healthcare Jhah, Women & Child Inst, POB 6850, Dhahran 31311, Saudi Arabia