AU - Middleton LE, Manini TM, Simonsick EM, et al TI - ACtivity energy expenditure and incident cognitive impairment in older adults PT - JOUR DP - 2011 TA - Archives of Internal Medicine pages = {1251-1257}, VI - 171 IP - 14 AID - 10.1001/archinternmed.2011.277 [doi] 4100 - http://dx.doi.org/10.1001/archinternmed.2011.277 SO - Archives of Internal Medicine July 25, 2011 171(14):1251