A teenager collapsed. His friends' quick response saved his life.

J.J. Machnik went into sudden cardiac arrest because of a genetic heart disorder that affects 1 in 500 people: hypertrophic cardiomyopathy.

A teenager collapsed. His friends' quick response saved his life.






J.J. Machnik went into sudden cardiac arrest because of a genetic heart disorder that affects 1 in 500 people: hypertrophic cardiomyopathy.

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