1. Department of Neurobiology, Care Sciences and Society, Center for Alzheimer Research, Division of Clinical Geriatrics, Karolinska Institutet, Stockholm (Holmgren, Aarsland, Freund-Levi); Department of Neurophysiology, Karolinska University Hospital, Huddinge, Sweden (Andersson); Department of Clinical Neuroscience, Karolinska Institutet, Stockholm (Berglund); Institute of Psychiatry, Psychology and Neuroscience, Division of Old Age Psychiatry, Kings College London (Aarsland, Freund-Levi); Centre for Age...