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The world in photos: April 15 - 21

chinadaily.com.cn | Updated: 2019-04-22 10:50
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Here are some of the most striking images taken from around the world over the past week.

A 3D printer prints a heart with human tissue at the University of Tel Aviv, Israel on April 15, 2019. Tel Aviv University scientists claim they have printed the world's first 3D heart, using cells and biological material from a human patient. [Photo/IC]
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