1. Turku PET Centre, University of Turku, Finland
2. Turku City Hospital, University of Turku, Finland
3. Combinostics Ltd, Tampere, Finland
4. Department of Biostatistics, University of Turku, Finland
5. Department of Radiation Sciences, Umeå University, Umeå, Sweden
6. National Institute for Health and Welfare, Turku, Finland
7. Department of Psychology, Åbo Akademi University, Turku, Finland
8. Department of Medicine, University of Turku, Turku University Hospital, Turku, Finland
9. Department of Radiology, Turku University and Turku University Hospital, Turku, Finland
10. Clinical Geriatrics, Karolinska Institutet, Karolinska University Hospital, Huddinge, Sweden
11. Division of Clinical Neurosciences, Turku University Hospital, Turku, Finland