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#heart spark #heart electricity #love jolt #sudden feeling #shock to the heart #intense emotion #attraction #electric love

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#edon lairtaonis #sa node #heart pacemaker #heart electricity #heart beat start #cardiac impulse

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#electrocardiogram #heart electricity #cardiac signal #electrical activity #heart test

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#cardiogramme #electrocardiogram #heart electricity #heart graph #ecg signal #cardiac monitoring #heart activity chart