1. Department of Psychiatry and Psychotherapy, Universitätsklinikum Erlangen, and Friedrich-Alexander-Universität, Erlangen-Nürnberg, Erlangen, Germany
2. Department of Neurodegeneration Diagnostics, Medical University of Białystok, and Department of Biochemical Diagnostics, University Hospital of Bialystok, Bialystok, Poland
3. IBL International GmbH, Hamburg, Germany
4. Clinical Neurochemistry Laboratory, Institute of Neuroscience and Physiology, Department of Psychiatry and Neurochemistry, the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden
5. Section of Neurology, Center for Memory Disturbances, University of Perugia, Italy
6. Alzheimer’s disease and other cognitive disorders unit, Neurology Service, Hospital Clínic de Barcelona – Universitat de Barcelona, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
7. Barcelonaβeta Brain Research Center, Pasqual Maragall Foundation, Barcelona, Spain
8. The Knight Alzheimer’s Disease Research Center, Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA