[1] King Fahad Specialist Hosp, Neurosci Ctr, Dammam, Saudi Arabia
[2] Al Sabah Hosp, Pediat Dept, Pediat Neurol Unit, Kuwait, Kuwait
[3] Al Sabah Hosp, Kuwait Med Genet Ctr, Kuwait, Kuwait
[4] King Saud Univ, Coll Med, Riyadh, Saudi Arabia
[5] King Saud Univ, Pediat Dept, Med Genet Div, Riyadh, Saudi Arabia
[6] Balamand Univ, St George Hosp, Pediat Dept, Beirut, Lebanon
[7] Leiden Univ, Med Ctr, Dept Human Genet, Leiden, Netherlands
[8] Lebanese Amer Univ, Gilbert & Rose Marie Chagoury Sch Med, Dept Human Genet, Byblos, Lebanon