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Ochsenbein AF, Riddell SR, Brown M, Corey L, Baerlocher GM, Lansdorp PM, Greenberg PD.Ochsenbein AF, et al.J Exp Med. 2004 Dec 6;200(11):1407-17. doi: 10.1084/jem.20040717.J Exp Med. 2004.PMID: 15583014Free PMC article.