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A blockage occur at point in the coronary artery |
| Answer» TION:But, ANGINA is a warning symptom of heart disease, not a heart attack. Caused by a drop in blood supply to the heart due to the gradual build-up of BLOCKAGE in the arteries. Caused by a sudden lack of blood supply to the heart muscle. The blockage is often due to a CLOT in a coronary artery. | |