1. College of Medicine, King Saud Bin Abdulaziz University for Health Sciences , Riyadh 11481, Saudi Arabia
2. King Abdullah International Medical Research Center , Riyadh 11481, Saudi Arabia
3. Ministry of the National Guard—Health Affairs , Riyadh 11426, Saudi Arabia
4. Department of Spine Surgery, King Faisal Specialist Hospital & Research Centre , Riyadh 11211, Saudi Arabia
5. Department of orthopedic surgery, Ministry of the National Guard—Health Affairs , Riyadh 11426, Saudi Arabia
6. Division of Neurology, King Abdulaziz Medical City, Ministry of the National Guard Health Affairs , Riyadh, Saudi Arabia
7. College of Medicine and Health science, United Arab Emirates University , United Arab Emirates