1. Center for Neuropathology and Prion Research; Ludwig Maximilians University; Munich; Germany
2. Medical Research Council London Neurodegenerative Diseases Brain Bank; King's College; London; UK
3. Neurological Tissue Bank and Neurology Department; Hospital Clinic/Institut d'Investigacio Biomedica August Pi i Sunyer; Barcelona; Spain
4. Department of Neurology; Erasmus Medical Center; Rotterdam; The Netherlands
5. Department of Neurology; Philipps Universität; Marburg; Germany