1. Statistical abstract of the United States: 2011.;Bureau U.S. Census,2011
2. Forecasting the global burden of Alzheimer’s disease.;R Brookmeyer,2007
3. Effects of cognitive training interventions with older adults: A randomized controlled trial.;K Ball,2002
4. Memory enhancement in healthy older adults using a brain plasticity-based training program: A randomized, controlled study. Proc Natl Acad Sci U S A.;HW Mahncke,2006
5. Cognition-based interventions for healthy older people and people with mild cognitive impairment.;M Martin,2011