Testing stem cells in tiniest hearts to fight birth defect

BALTIMORE (AP) — The 4-month-old on the operating table has a shocking birth defect, nearly half his heart too small or even missing. To save him, surgeons will have to totally reroute how his blood flows, a drastic treatment that doesn&apo…

BALTIMORE (AP) — The 4-month-old on the operating table has a shocking birth defect, nearly half his heart too small or even missing. To save him, surgeons will have to totally reroute how his blood flows, a drastic treatment that doesn't always work….

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