| http://www.w3.org/ns/prov#value | - sts may be used to judge who would receive an implanted pacemaker-like device called a defibrillator, researchers said.In one study two measurements -- a change in electrocardiogram or ECG tracing called ST-segment depression and an inability to reach target heart rate -- more than doubled the 10-year risk of coronary events such as heart attacks.Men who did well on the stress test had a lower-tha
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