1. Department of Chemistry and Molecular Biology, University of Gothenburg, Kemivägen 10, 405 30 Gothenburg, Sweden
2. Department of Psychiatry and Neurochemistry, Sahlgrenska Academy at the University of Gothenburg, Mölndal Hospital, House V3, 43180 Mölndal, Sweden
3. Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, House V3, 43180 Mölndal, Sweden
4. Institute of Neurology, University College London, Queen Square, London WC1N 3BG, United Kingdom
5. UK Dementia Research Institute at University College London, London WC1N 3AR, United Kingdom
6. Department of Chemistry and Chemical Engineering, Chalmers University of Technology, 412 96 Gothenburg, Sweden