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Life's work: Dr. Marguerite McDonald

The first ever laser eye surgery on a living human was performed in a primate lab. Dr. Marguerite McDonald explains why.

Fri May 17, 2013 @ 12:05:23 pm ET via CNN Video
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About

I’m a father of three, a practicing neurosurgeon, and a globe-trotting journalist. Join me as I go beyond the headlines, and offer insight to stories that shape the quality of life for you and your family. FULL BIO

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