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Congress Agrees on 1 Thing: GSA Scandal an Outrage

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PBS News Hour

After Heart Attack, Turning Scar Tissue Into Heart Cells

A study published Wednesday in the journal Nature revealed that scientists have managed to convert damaged tissue into functioning heart muscle by inducing mild heart attacks on lab mice then coaxing their hearts into rebuilding themselves. In collaboration with KQED's QUEST program, correspondent Spencer Michels reports.
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