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Ketelsen D, Buchgeister M, Korn A, Fenchel M, Schmidt B, Flohr TG, Thomas C, Schabel C, Tsiflikas I, Syha R, Claussen CD, Heuschmid M.Ketelsen D, et al. Among authors: syha r.Radiol Res Pract. 2012;2012:724129. doi: 10.1155/2012/724129. Epub 2012 May 31.Radiol Res Pract. 2012.PMID: 22701793Free PMC article.