1. 1) Ball, K., Berch, D. B., Helmers, K. F., et al.: Effects of cognitive training interventions with older adults : A randomized controlled trial. JAMA, 288 : 2271-2281, 2002.
2. 2) Dubois, B., Slachevsky, A., Litvan, I., et al.: The FAB : A frontal assessment battery at bedside. Neurology, 55 : 1621-1626, 2000.