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Kaplan–Meier curve showing the relation between survival and time to first major cardiac event for three groups with different H/M values: late H/M <1.4 vs late H/M 1.4–2.0, p < 0.0001; late H/M<1.4 vs late H/M >2.0, p < 0.0001; late H/M 1.4–2.0 vs late H/M>2.0, p < 0.0001
