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Nature Portfolio på Twitter: "On the cover this week: Vital Connections http://t.co/FAGc6u7zyc" / Twitter
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Nature Portfolio on Twitter: "On the Nature cover this week: Unnatural selection. Directed evolution of microbial enzyme opens fresh route to carbon-carbon bond formation. https://t.co/9EH2CB7kqc https://t.co/rTf5zmDEnt" / Twitter
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