1. Department of Neurology Faculty of Medicine and University Hospital Cologne University of Cologne Cologne Germany
2. Cognitive Neuroscience Research Center Jülich Institute of Neuroscience and Medicine (INM3) Research Centre Juelich Juelich Germany
3. Max Planck Institute for Metabolism Research Cologne Germany
4. Department of Psychiatry Psychosomatic Medicine and PsychotherapyUniversity Hospital Frankfurt Frankfurt Germany
5. Faculty of Health, Medicine and Life Sciences School for Mental Health and Neuroscience Alzheimer Centre Limburg; Maastricht University Maastricht The Netherlands
6. Gordon Center of Medical Imaging Department of Radiology Massachusetts General Hospital Harvard Medical School Boston MA USA
7. Department of Palliative Medicine Faculty of Medicine and University Hospital CologneUniversity of Cologne Cologne Germany
8. Department of Neurology and Clinical Neurophysiology Helios University Hospital Wuppertal Wuppertal Germany
9. Faculty of Health Witten/Herdecke University Witten Germany