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Damar Hamlin's cardiac arrest during 'Monday Night Football' could be commotio cordis or a more common condition – a heart doctor answers 4 questions
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What Happened to Damar Hamlin? What We Know After Bills Player Collapses, Suffers Cardiac Arrest On Field – NBC Chicago
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Very rare - the perfect storm': Cardiologist on NFL star Damar Hamlin's on-field collapse | US News | Sky News
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Widow of only NFL player to die on the field responds to Damar Hamlin cardiac arrest: 'You can't blame football' | The Independent
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