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Your query returned 6 studies. Series results are grouped under the most relevant study. Ungroup series results to view all 6 results.

1.
Old Age in the United States, 1900 (ICPSR 8428)
Jensen, Richard; Smith, Daniel Scott; Friedberger, Mark W.; et al.
2.
Old Age in the United States, 1880 (ICPSR 8427)
Jensen, Richard; Smith, Daniel Scott; Friedberger, Mark W.; et al.
3.
ACTIVE (Advanced Cognitive Training for Independent and Vital Elderly), 1999-2008 (ICPSR 36036)
Willis, Sherry; Jones, Richard; Ball, Karlene; et al.
4.
Cognition and Aging in the USA (CogUSA) 2007-2009 (ICPSR 36053)
McArdle, John; Rodgers, Willard; Willis, Robert
5.
6.
ACTIVE (Advanced Cognitive Training for Independent and Vital Elderly), 1999-2001 [United States] (ICPSR 4248)
Tennstedt, Sharon; Morris, John; Unverzagt, Frederick; et al.

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