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Schimming TT, Parwez Q, Petrasch-Parwez E, Nothnagel M, Epplen JT, Hoffjan S.Schimming TT, et al. Among authors: hoffjan s.BMC Dermatol. 2007 Mar 16;7:3. doi: 10.1186/1471-5945-7-3.BMC Dermatol. 2007.PMID: 17362526Free PMC article.