1. Kufa College of Medicine, Kufa University, Al-Najaf, Iraq
2. MS Clinic, Baghdad Teaching Hospital, Medical City Complex, Baghdad, Iraq
3. Medical City, Baghdad Teaching Hospital, Baghdad, Iraq
4. College of Medicine, University of Sulaimani, Kurdistan Region, Iraq
5. Al-Imam Al-Sadiq Teaching Hospital, Babylon, Iraq
6. College of Medicine, Hawler Medical University, Kurdistan Region, Iraq
7. Neuroscience Teaching Hospital, Baghdad, Iraq
8. Merck KGaA Middle East Ltd., Merck KGaA, Darmstadt, Germany
9. Al Kadymia Hospital, Baghdad, Iraq