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The Circulatory System HEART

Watch this awesome video of a man suffering a near fatal heart attack (MI) Myocardial Infarction  https://www.youtube.com/watch?v=H_VsHmoRQKk

https://www.youtube.com/watch?v=AIcAF34MPpU

https://www.youtube.com/watch?v=oHMmtqKgs50