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Brosbøl-Ravnborg A, Hvas CL, Agnholt J, Dahlerup JF, Vind I, Till A, Rosenstiel P, Höllsberg P.Brosbøl-Ravnborg A, et al. Among authors: hvas cl.Clin Exp Immunol. 2009 Mar;155(3):487-95. doi: 10.1111/j.1365-2249.2008.03850.x. Epub 2008 Dec 15.Clin Exp Immunol. 2009.PMID: 19094116Free PMC article.