Prevalence of disorders of executive cognitive functioning among the elderly: findings from the San Luis Valley Health and Aging Study.
Grigsby J, Kaye K, Shetterly SM, Baxter J, Morgenstern NE, Hamman RF. Prevalence of disorders of executive cognitive functioning among the elderly: findings from the San Luis Valley Health and Aging Study. Neuroepidemiology. 2002 Sep-Oct; 21(5):213-20.