1. Faculty of Medicine, American University of Beirut, Beirut, Lebanon
2. College of Medical, Veterinary, and Life Sciences, University of Glasgow, Glasgow, Scotland
3. Neuroscience Research Center, Faculty of Medicine, Lebanese University, Beirut, Lebanon
4. Department of Neurological Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
5. Division of Orthopedic Surgery, Department of Surgery, American University of Beirut Medical Center, Beirut, Lebanon