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(a) Cumulative total recall by pass for each of the five groups; (b) mean change (final - initial) in free and cued recall for each of the five groups; (c) final free recall for all participants as a function of age; (d) final cued recall for all participants as a function of age; (e) mean total change in recall for each of the five groups; (f) total change in recall for all participants as a function of age. Error bars indicate 95% confidence intervals.
