Changes in cognitive function in a randomized trial of physical activity: results of the lifestyle interventions and independence for elders pilot study.
Williamson JD, Espeland M, Kritchevsky SB, Newman AB, King AC, Pahor M, Guralnik JM, Pruitt LA, Miller ME. Changes in cognitive function in a randomized trial of physical activity: results of the lifestyle interventions and independence for elders pilot study. J Gerontol A Biol Sci Med Sci. 2009 Jun; 64(6):688-94.