Examlex
Write the fraction in simplest form.
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Pacemaker
The SA node of the heart; also refers to an artificial device that initiates heartbeat.
High Risk
Situations, activities, or individuals associated with a significantly increased likelihood of adverse outcomes or danger.
Heart Disease
A range of conditions affecting the heart, including coronary artery disease, heart rhythm problems (arrhythmias), and many others.
ECG Stress Test
A diagnostic test examining how the heart works under stress, typically involving exercise or medication.
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