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Erhardt M, Schmidt-Wolf IG, Sievers E, Frank S, Strehl J, von Lilienfeld-Toal M, Gorschlüter M.Erhardt M, et al.Arch Immunol Ther Exp (Warsz). 2006 Nov-Dec;54(6):403-9. doi: 10.1007/s00005-006-0048-5. Epub 2006 Nov 21.Arch Immunol Ther Exp (Warsz). 2006.PMID: 17122879Free article.