1. Institute of Neuroscience and Medicine (INM-3), Forschungszentrum Jülich, D-52425 Jülich, Germany
2. Faculty of Medicine and University Hospital Cologne, Department of Neurology, University of Cologne, D-50937 Köln, Germany
3. Department of Nuclear Medicine and PET, Aarhus University Hospital, DK-8200 Aarhus N, Denmark
4. Institute of Neuroscience and Medicine (INM-4), Forschungszentrum Jülich, D-52425 Jülich, Germany
5. German Center for Neurodegenerative Diseases (DZNE), D-39120 Magdeburg, Germany
6. Institute of Cognitive Neurology and Dementia Research, Otto-von-Guericke-University Magdeburg, D-39120 Magdeburg, Germany
7. Center for Behavioral Brain Sciences, University of Magdeburg, D-39120 Magdeburg, Germany
8. Division of Brain Sciences, Imperial College London, London SW7 2AZ, UK
9. Institute of Translational and Clinical Research, University of Newcastle upon Tyne, Newcastle upon Tyne NE1 7RU, UK