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  1. Heart Attack - What Is a Heart Attack? - NHLBI, NIH

  2. Heart Attack - Symptoms - NHLBI, NIH

  3. Heart Attack - Treatment - NHLBI, NIH

  4. Heart Attack - Causes and Risk Factors | NHLBI, NIH

  5. Heart Attack - Recovery - NHLBI, NIH

  6. Heart Attack - Heart Attacks in Women - NHLBI, NIH

  7. Heart Attack - Diagnosis - NHLBI, NIH

  8. Physical Activity and Your Heart - Benefits | NHLBI, NIH

  9. How Smoking Affects the Heart and Blood Vessels - NHLBI, NIH