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Wolk DA, Dickerson BC; Alzheimer's Disease Neuroimaging Initiative.Wolk DA, et al.Proc Natl Acad Sci U S A. 2010 Jun 1;107(22):10256-61. doi: 10.1073/pnas.1001412107. Epub 2010 May 17.Proc Natl Acad Sci U S A. 2010.PMID: 20479234Free PMC article.