Franzmeier, Nicolai [P:(DE-HGF)0] ; Duering, Marco [P:(DE-HGF)0] ; Weiner, Michael [P:(DE-HGF)0] ; Dichgans, Martin [P:(DE-2719)2000030] ; Ewers, Michael [P:(DE-HGF)0] ; Initiative, Alzheimer's Disease Neuroimaging [P:(DE-HGF)0]