1. From the Image Analysis Center (A.J.B.-L., F.B.), the Alzheimer Center (A.J.B.-L., W.M.v.d.F., E.C.W.v.S., S.S.S., P.S., F.B.), the Department of Neurology (W.M.v.d.F., E.C.W.v.S., S.S.S., P.S.), and the Department of Radiology (F.B.), VU University Medical Center, Amsterdam, The Netherlands; and the Department of Medical Imaging (A.J.B.-L.), Faculty of Medicine, University of Oporto, Oporto, Portugal.