1. Computational, Cognitive and Clinical Neuroimaging Laboratory, Imperial College London, Division of Brain Sciences, Hammersmith Hospital, London, UK
2. Department of Nuclear Medicine, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK
3. Imaging Department, Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK
4. Institute of Neurology, Division of Clinical Neurology, University College London, London, UK
5. United Kingdom (UK) Dementia Research Institute, 6th Floor, UCL Maple House Tottenham Court Road, London, W1T 7NF, UK