World's first laboratory-grown beef burger
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| Hanni Rutzler, a food researcher from Austria, tastes the world's first lab-grown beef burger during a launch event in west London August 5, 2013. [Photo/Agencies] | 
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| Hanni Rutzler, a food researcher from Austria, tastes the world's first lab-grown beef burger during a launch event in west London August 5, 2013. [Photo/Agencies] | 
