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Letter: For the record

Published 6 July 2011

• In the “Battle of the bulge” feature (11 June, p 32) we transposed the volume and page numbers in one of the references. It should have been Nature, vol 469, p 374.

Issue no. 2820 published 9 July 2011

Â鶹´«Ã½ issue 2820 cover

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