Sano M, Zhu CW, Whitehouse PJ, Edland S, Jin S, Ernstrom K, Thomas RG, Thal LJ, Ferris SH, Alzheimer Disease Cooperative Study Group. ADCS Prevention Instrument Project: pharmacoeconomics: assessing health-related resource use among healthy elderly. Alzheimer Dis Assoc Disord. 2006 Oct-Dec;20(4 Suppl 3):S191-202. PubMed Abstract