1. Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
2. Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden
3. Department of Neurodegenerative Disease, UCL Institute of Neurology, Dementia Research Institute at UCL, London, UK
4. Wisconsin Alzheimer’s Disease Research Center, University of Wisconsin School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, USA
5. Hong Kong Center for Neurodegenerative Diseases, Clear Water Bay, Hong Kong, China