1 Neurosurgery Department, Hamad General Hospital. Electronic address: mmkyousafzai@gmail.com.
2 Neurosurgery Department, Hamad General Hospital.
3 College of Medicine - Qatar University.
4 Neurological Surgery Department, University of Pittsburgh Medical Center, Pittsburgh, PA.
5 Neurosurgery Department, Hamad General Hospital; Department of Clinical Academic Sciences, College of Medicine, Qatar University, Doha, Qatar; Department of Neurological Sciences, Weill Cornell Medicine, Doha, Qatar.