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The objective of this study was to test the hypothesis that psychological factors are determinants of anginal symptoms during positive exercise tests. The sample consisted of clinically stable patients who were enrolled in the Multicenter Study of Myocardial Ischemia 1 to 6 months after admission to a coronary care unit. Among 186 posh-myocardial infarction patients, 151 developed ischemia (i.e.,...