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Level of depression (A) and cognitive function (B) in patients with CHD before (0) and 6 and 12 months after CABG and in the control group. Values are shown as the mean ± SD. *P<0.05, **P<0.001 versus controls; +P<0.05, ++P<0.001 versus men; !P<0.001 versus 0.
Abbreviations: CABG, coronary artery bypass grafting; CHD, coronary heart disease; SD, standard deviation.
