1. Great Lakes NeuroTechnologies Inc., Cleveland, OH, USA
2. Gardner Center for Parkinson’s Disease and Movement Disorders, University of Cincinnati, Cincinnati, OH, USA
3. Division of Neurology, Greenville Health System, University of South Carolina School of Medicine-Greenville, Greenville, SC, USA
4. Center for Neurological Restoration, Cleveland Clinic, Cleveland, OH, USA
5. Department of Neurology, Cairo University, Egypt