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. 2001 Mar 5;193(5):631–636. doi: 10.1084/jem.193.5.631

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© 2001 The Rockefeller University Press

This article is distributed under the terms of an Attribution–Noncommercial–Share Alike–No Mirror Sites license for the first six months after the publication date (see http://www.rupress.org/terms). After six months it is available under a Creative Commons License (Attribution–Noncommercial–Share Alike 4.0 Unported license, as described at http://creativecommons.org/licenses/by-nc-sa/4.0/).

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Lack of PP development in IKKα-deficient mice. Embryonic intestines isolated from control littermates (A) and IKKα-deficient mice (B) were stained with anti–VCAM-1 mAb. Arrows indicate the sites of PPs. Original magnification, ×10.