Chinese human rights activist Chen Guangcheng during a ceremony in January where he was presented the Tom Lantos Human Rights Prize. Win McNamee/Getty Images hide caption

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Chinese legal activist Chen Guangcheng, center, arrives at Washington Square Village on the campus of New York University on Saturday in New York. Chen escaped from his village in April and was given sanctuary inside the U.S. Henny Ray Abrams/AP hide caption

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Chinese activist Chen Guangcheng (in wheelchair) held the hand of Gary Locke (at right) the U.S. ambassador to China in Beijing as he arrived at a hospital in Beijing on Wednesday. AFP/Getty Images hide caption

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Chinese activist activist Chen Guangcheng earlier today at the a hospital in Beijing. He reportedly injured himself during his escape from house arrest last month. Jordan Pouille /AFP/Getty Images hide caption

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