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April 28th, 2008
09:43 PM ET

Could the potato hold the key?

Could the potato hold the key?

Dr. Sanjay Gupta, while on assignment in Peru toured a local market to witness the effects of a looming food crisis.

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Get a behind-the-scenes look at the latest stories from CNN Chief Medical Correspondent, Dr. Sanjay Gupta, Senior Medical Correspondent Elizabeth Cohen and the CNN Medical Unit producers. They'll share news and views on health and medical trends - info that will help you take better care of yourself and the people you love.

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