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Heart Attack: when an area of heart muscle dies or is damaged because of an inadequate supply of oxygen to that area.

The links below will take you to additional detailed information about Heart Attack.

A.D.A.M. Health Illustrated Encyclopedia
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Dorland's Medical Dictionary for Healthcare Consumers
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HealthMap^SM Platform
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The Merck Manual—Home Edition
Access the essential health reference guide The Merck Manual—Home Edition. Discover in-depth information on all of your health and medical concerns.