1. Department of Neuropathology; University Medical Center, Georg August University; Göttingen Germany
2. Department of Neurology; Neurosciences Center, King Fahad Specialist Hospital Dammam; Dammam Saudi Arabia
3. Department of Medical Statistics; University Medical Center, Georg August University; Göttingen Germany
4. Department of Pediatrics and Adolescent Medicine; University Medical Center, Georg August University; Göttingen Germany
5. Department of Neurology; Mayo Clinic College of Medicine; Rochester MN