TI - Incorrect data in: Effect of physical activity on cognitive function in older adults at risk for alzheimer disease: a randomized trial PT - JOUR DP - 2009 TA - JAMA pages = {276}, VI - 301 IP - 3 AID - 10.1001/jama.301.3.276 [doi] 4100 - http://dx.doi.org/10.1001/jama.301.3.276 SO - JAMA January 21, 2009 301(3):276