While waiting for a human heart transplant, Stan Larkin lived 555 days without the organ at all.
To passers-by, the 25-year-old Ypsilanti, Michigan, resident appeared to be a typical young adult. He enjoyed taking his three toddlers to the park and hanging out with his younger brother, Dominique.
What wasn’t obvious was that a gray backpack Larkin carried was what kept him alive. Inside that bag was the power source for an artificial heart pumping in his chest.
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