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Grupp SA, Mitchell RN, Schreiber KL, McKean DJ, Abbas AK.Grupp SA, et al. Among authors: schreiber kl.J Exp Med. 1995 Jan 1;181(1):161-8. doi: 10.1084/jem.181.1.161.J Exp Med. 1995.PMID: 7807000Free PMC article.