1. Division of Neurology, Department of Medicine, Al-Amiri Hospital, Kuwait City, Kuwait
2. Neurology Department, Rashid Hospital and Dubai Medical College, Dubai Health Authority, Dubai, UAE
3. KFSH-R, Riyadh, Saudi Arabia
4. Ibn Sina Neurology Hospital, Kuwait City, Kuwait
5. Department of Neurology and Psychiatry, Minia University, Minia, Egypt
6. College of Medicine, King Saud Bin Abdul Aziz University for Health Sciences, Riyadh, Saudi Arabia
7. King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
8. Division of Neurology, King Abdul Aziz Medical City, National Guard Health Affairs, Riyadh, Saudi Arabia
9. Khoula hospital, Muscat, Oman
10. SSMC Hospital, Abu Dhabi, UAE
11. College of Medicine, King Saud University, Riyadh, Saudi Arabia
12. King Faisal Specialist Hospital and Research Center, Jeddah, Saudi Arabia
13. Johns Hopkins Aramco Healthcare, Dhahran, Saudi Arabia
14. Al Zahraa Hospital, Dubai, UAE
15. Tawam Hospital, Abu Dhabi, UAE
16. Sanofi Genzyme, Dubai, UAE