High prevalence of cerebral microbleeds at 7Tesla MRI in patients with early Alzheimer’s disease Manuscript Number: 12-0364R1 Author(s): Geert Jan Biessels, Manon Brundel, Sophie M. Heringa, L. Jaap Kappelle, Huiberdina L. Koek, Peter R. Luitjen, Jaco J.M. Zwanenburg, Jeroen de Bresser