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Kneilling M, Caroli U, Grimmel C, Fischer J, Eichner M, Wieder T, Maier FC, Röcken M, Biedermann T.Kneilling M, et al. Among authors: biedermann t.Exp Dermatol. 2010 May;19(5):435-41. doi: 10.1111/j.1600-0625.2009.01043.x. Epub 2010 Jan 25.Exp Dermatol. 2010.PMID: 20113350Clinical Trial.