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Eskildsen T, Taipaleenmäki H, Stenvang J, Abdallah BM, Ditzel N, Nossent AY, Bak M, Kauppinen S, Kassem M.Eskildsen T, et al. Among authors: kassem m.Proc Natl Acad Sci U S A. 2011 Apr 12;108(15):6139-44. doi: 10.1073/pnas.1016758108. Epub 2011 Mar 28.Proc Natl Acad Sci U S A. 2011.PMID: 21444814Free PMC article.