1. Department of Neurology; Dr. Lutfi Kirdar Kartal Training and Research Hospital; Istanbul Turkey
2. Department of Neurology; Liv Hospital; Ankara Turkey
3. Department of Neurology; Gulhane Education and Research Hospital; Ankara Turkey
4. Gaziler Physical Medicine and Rehabilitation Education and Research Hospital; Ankara Turkey
5. Department of Neurology; Ankara Education and Research Hospital; Ankara Turkey