1. Department of Circulation and Medical Imaging Norwegian University of Science and Technology Trondheim Norway
2. Nuffield Department of Clinical Neurosciences University of Oxford Oxford UK
3. Donders Institute Radboud University Nijmegen Medical Centre Nijmegen The Netherlands
4. Department of Clinical Medicine UiT The Arctic University of Norway Tromsø Norway
5. PET Center University Hospital North Norway Tromsø Norway
6. Department of Neuroscience Norwegian University of Science and Technology Trondheim Norway
7. Department of Diagnostic Imaging, MR‐Center St. Olav's University Hospital Trondheim Norway