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Figure 3. Mean natural killer cell cytotoxicity at 3 effector:target ratios for unemployed and employed time periods (for the unemployed subsample who became employed) and for the matched employed subsample; n = 24 for each subsample. For matched pairs, the same time periods were used as those in the unemployed subsample. Error bars represent standard errors of the mean. *p < .05 for unemployed time periods versus employed time periods for the unemployed who got new jobs; **p < .01 for unemployed time periods versus employed time periods for the unemployed who got new jobs.
