1. Baton Rouge Neurology Associates, Baton Rouge General Medical Center, 3600 Florida Blvd, Baton Rouge, LA 70806, USA
2. Department of Neurology, University of Texas Southwestern Medical Center at Dallas, Texas, USA and Neurology Section, VA North Texas Health Care System, Medical Service, Dallas, TX, USA
3. Department of Neurology, Barzilai Medical Center, Ashkelon, Israel