1. Grupo de Neurociencias de Antioquia, Facultad de Medicina Universidad de Antioquia Medellin Colombia
2. Department of Psychiatry, Massachusetts General Hospital Harvard Medical School Boston Massachusetts USA
3. Banner Alzheimer's Institute Phoenix Arizona USA
4. Department of Neurology, Massachusetts General Hospital Harvard Medical School Boston Massachusetts United States
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, UCL Institute of Neurology Queen Square London UK
8. UK Dementia Research Institute at UCL London UK
9. Hong Kong Center for Neurodegenerative Diseases Hong Kong China
10. Memory Clinic Skåne University Hospital Malmö Sweden
11. Clinical Memory Research Unit, Department of Clinical Sciences Malmö Lund University Lund Sweden
12. Indiana University School of Medicine Indianapolis Indiana USA
13. Department of Psychological and Brain Sciences Boston University Boston Massachusetts USA
14. Department of Neurology, Brigham and Women's Hospital Harvard Medical School Boston Massachusetts USA