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Angina pectoris is the medical term for chest pain due to coronary heart disease. This is a condition in which the heart muscle doesn't receive enough blood, resulting in pain in the chest. Angina is a symptom of a condition called myocardial ischemia. Ischemia occurs when the heart muscle (myocardium) doesn't get as much blood (hence as much oxygen) as it needs for a given level of work.
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