1. Department of Psychological and Brain Sciences Boston University Boston Massachusetts USA
2. Department of Psychiatry Massachusetts General Hospital Harvard Medical School Boston Massachusetts USA
3. Department of Neurology Massachusetts General Hospital Harvard Medical School Boston Massachusetts USA
4. Princeton Neuroscience Institute Princeton University Princeton New Jersey USA
5. Banner Alzheimer's Institute Phoenix Arizona USA
6. MassGeneral Institute for Neurodegenerative Disease Charlestown Massachusetts USA
7. Division of Nuclear Medicine Department of Radiology Massachusetts General Hospital Harvard Medical School Boston Massachusetts USA
8. School for Mental Health and Neuroscience Alzheimer Centre Limburg Maastricht University Maastricht The Netherlands
9. Grupo de Neurociencas Universidad de Antioquia Medellín Antioquia Colombia
10. Department of Radiology Hospital Pablo Tobon Uribe Medellín Colombia
11. Athinoula A. Massachusetts General Hospital Harvard Medical School Charlestown Massachusetts USA
12. Department of Neurology Brigham and Women's Hospital Harvard Medical School Boston Massachusetts USA