1. Clinical Neuroscience Department, Institute of Neuroscience, Université Catholique de Louvain, Brussels, Belgium.
2. Neurology Department, Saint-Luc University Hospital, Brussels, Belgium.
3. Nuclear Medicine Department, Saint-Luc University Hospital, Brussels, Belgium.
4. Radiology Department, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA.
5. Louvain Aging Brain Lab, Walloon Excellence in Life Sciences and Biotechnology (WELBIO), Université Catholique de Louvain, Brussels, Belgium.