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Science 318 (5851): 754-755

Copyright © 2007 by the American Association for the Advancement of Science

Acceptable nAGging

David L. Stocum

Understanding how a factor secreted by neural tissue promotes newt limb regrowth may help the field of regenerative medicine.

The author is in the Department of Biology, Indiana University-Purdue University Indianapolis, 723 W. Michigan St. Indianapolis, IN 46202, USA. E-mail dstocum{at}

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Science Signaling. ISSN 1937-9145 (online), 1945-0877 (print). Pre-2008: Science's STKE. ISSN 1525-8882