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Sci. STKE, 5 August 2003
[DOI: 10.1126/stke.2003.194.pe32]


The following correction should be noted for the Perspective by Mirshahi et al.:
In the figure legend on page 2 of the PDF, Asp323 should read Asp223.

The online full text view of the article has been corrected. A corrected PDF is available starting August 26, 2003.

A PDF of the originally published article with the original text is also available at;2003/194/pe32/DC1/1

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