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Heeger PS, Lalli PN, Lin F, Valujskikh A, Liu J, Muqim N, Xu Y, Medof ME.Heeger PS, et al.J Exp Med. 2005 May 16;201(10):1523-30. doi: 10.1084/jem.20041967. Epub 2005 May 9.J Exp Med. 2005.PMID: 15883171Free PMC article.