Kotagal V, Langa KM, Plassman BL, et al. Factors associated with cognitive evaluations in the United States. Neurology. 2015;84(1):64-71. doi:10.1212/WNL.0000000000001096.

Plassman BL, Langa KM, McCammon RJ, et al. Incidence of dementia and cognitive impairment, not dementia in the United States. Ann Neurol. 2011;70(3):418-26. doi:10.1002/ana.22362.

Okura T, Plassman BL, Steffens DC, Llewellyn DJ, Potter GG, Langa KM. Neuropsychiatric symptoms and the risk of institutionalization and death: the aging, demographics, and memory study. J Am Geriatr Soc. 2011;59(3):473-81. doi:10.1111/j.1532-5415.2011.03314.x.

Okura T, Plassman BL, Steffens DC, Llewellyn DJ, Potter GG, Langa KM. Prevalence of neuropsychiatric symptoms and their association with functional limitations in older adults in the United States: the aging, demographics, and memory study. J Am Geriatr Soc. 2010;58(2):330-7. doi:10.1111/j.1532-5415.2009.02680.x.

Potter GG, Plassman BL, Burke JR, et al. Cognitive performance and informant reports in the diagnosis of cognitive impairment and dementia in African Americans and whites. Alzheimers Dement. 2009;5(6):445-53. doi:10.1016/j.jalz.2009.04.1234.

Steffens DC, Fisher GG, Langa KM, Potter GG, Plassman BL. Prevalence of depression among older Americans: the Aging, Demographics and Memory Study. Int Psychogeriatr. 2009;21(5):879-88. doi:10.1017/S1041610209990044.

Plassman BL, Langa KM, Fisher GG, et al. Prevalence of cognitive impairment without dementia in the United States. Ann Intern Med. 2008;148(6):427-34. doi:10.7326/0003-4819-148-6-200803180-00005.

Plassman BL, Langa KM, Fisher GG, et al. Prevalence of dementia in the United States: the aging, demographics, and memory study. Neuroepidemiology. 2007;29(1-2):125-32. doi:10.1159/000109998.

Langa KM, Plassman BL, Wallace RB, et al. The Aging, Demographics and Memory Study: Study Design and Methods. Neuroepidemiology. 2005;25:181-191.