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Mauer UM, Kunz U, Schulz C.Mauer UM, et al. Among authors: schulz c.Radiol Res Pract. 2011;2011:108438. doi: 10.1155/2011/108438. Epub 2011 May 23.Radiol Res Pract. 2011.PMID: 22091370Free PMC article.