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Figure 3 Relative risk of all-cause mortality based on time of angiography and the extent of revascularization. The results show that invasive therapy at a median of 9.3 h does not provide a greater survival advantage compared with angiography at a median of 39.4 h. In contrast, when a large proportion of invasively treated patients relative to conservatively treated patients undergo revascularization by follow-up, there is a strong improvement in late survival.
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