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Koperek O, Prinz A, Scheuba C, Niederle B, Kaserer K.Koperek O, et al. Among authors: kaserer k.Virchows Arch. 2009 Jul;455(1):43-8. doi: 10.1007/s00428-009-0786-y. Epub 2009 May 30.Virchows Arch. 2009.PMID: 19484261