National Donor Day is held every February to raise awareness of the lifesaving benifits of organ, eye and tissue donation. In China, where the population is 1.4 billion, scientists are working on a procedure that makes pig corneas suitable for human transplant. Adriana Diaz has the story.
From: http://www.cbsnews.com/videos/scientists-working-on-restoring-human-sight-with-pig-eyes/
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