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Angina is chest pain or discomfort caused by reduced blood flow to the heart muscle. It is often a symptom of coronary artery disease.
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Coronary Artery Disease: A condition where the coronary arteries become narrowed or blocked, leading to reduced blood flow to the heart.
Nitroglycerin: A medication that dilates blood vessels to relieve chest pain associated with angina.
Beta-Blockers: A class of drugs that reduce heart rate and cardiac output, commonly used in treating hypertension and angina.