1. Division of Neurology, Department of Neurosciences, Faculty of Medicine, Jordan University of Science and Technology (JUST), Irbid, Jordan
2. Department of Public Health and Family Medicine, Faculty of Medicine, Jordan University of Science and Technology (JUST), Irbid, Jordan
3. Department of Neurosurgery and the Kenneth R. Peak Brain and Pituitary Treatment Center, Houston Methodist Hospital, Houston, TX, USA
4. Plummer Movement Disorders Center, Baylor Scott and White Clinics, Temple, TX, USA
5. Department of Neurosurgery, University of Texas, Memorial Hermann Southeast Hospital, 18955 Memorial N, Humble, TX, USA
6. Department of Neurosurgery, University of California San Francisco, 155 N Fresno St, Fresno, CA, USA