1 Department of Neurobiology, Care Sciences and Society, Centre of Alzheimer Research, Division of Neurogeriatrics, Karolinska Institutet, SE-17164 Stockholm, Sweden. Electronic address: anders.wimo@ki.se.
2 Department of Psychiatry and Neuropsychology, Alzheimer Centre Limburg, and School for Mental Health and Neurosciences, Maastricht University, Maastricht, The Netherlands.
3 Department of Neurobiology, Care Sciences and Society, Centre of Alzheimer Research, Division of Neurogeriatrics, Karolinska Institutet, SE-17164 Stockholm, Sweden.