[1] Amiri Hosp, Dept Med, Div Neurol, Arabian Gulf St, Sharq 13041, Kuwait
[2] Dasman Diabet Inst, Neurol Clin, Kuwait, Kuwait
[3] Ibn Sina Hosp, Dept Neurol, Kuwait, Kuwait
[4] Kuwait Univ, Fac Med, Dept Med, Kuwait, Kuwait
[5] Farwaniya Hosp, Dept Med, Div Neurol, Kuwait, Kuwait
[6] Al Adan Hosp, Div Neurol, Dept Med, Kuwait, Kuwait
[7] Mubarak Al Kabeer Hosp, Div Neurol, Dept Med, Kuwait, Kuwait