[1] King Saud Bin Abdulaziz Univ Hlth Sci, Coll Med, Riyadh, Saudi Arabia
[2] Minist Natl Guard Hlth Affairs, Div Neurol, Dept Med, King Abdulaziz Med City, Riyadh, Saudi Arabia
[3] Almaarefa Coll, Coll Med, Riyadh, Saudi Arabia
[4] King Abdullah Int Med Res Ctr, Dept Biostat & Bioinformat, Riyadh, Saudi Arabia
[5] Qassim Univ, Unaizah Coll Med, Unayzah, Saudi Arabia
[6] Muhammad Bin Saud Islamic Univ, Coll Med, Riyadh, Saudi Arabia
[7] Princess Nourah Bint Abdul Rahman Univ, Coll Med, Riyadh, Saudi Arabia