1. Danish Dementia Research Centre, Department of Neurology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
2. Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
3. Ace Alzheimer Center Barcelona, Spain
4. Universitat International de Catalunya-Barcelona, Spain
5. Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden
6. Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden
7. Department of Neurodegenerative Disease, University College London Institute of Neurology, London, UK
8. UK Dementia Research Institute at University College London, London, UK
9. Hong Kong Center for Neurodegenerative Diseases, Clear Water Bay, Hong Kong
10. AD and Related Disorders Research Unit, McGill Center for Studies in Aging, Verdun, Quebec, Canada
11. Departments of Neurology & Neurosurgery, Psychiatry, and Medicine at McGill, Montréal (Québec), Canada
12. Research Center on Neurodegenerative Diseases (CIBERNED), Instituto de Salud Carlos III, Madrid, Spain
13. Center for Improving Chronic Illness Care at the University of Southern California, San Diego, CA