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Lee JH, Cheng R, Graff-Radford N, Foroud T, Mayeux R; National Institute on Aging Late-Onset Alzheimer's Disease Family Study Group.Lee JH, et al.Arch Neurol. 2008 Nov;65(11):1518-26. doi: 10.1001/archneur.65.11.1518.Arch Neurol. 2008.PMID: 19001172Free PMC article.