Der UrologeJanuary 2012, Volume 51, Issue 1, pp 119–131 | Cite asMitteilungen der DGUMitteilungen der DGUFirst Online: 20 January 2012 37 Downloads This is a preview of subscription content, log in to check access.PreviewUnable to display preview. Download preview PDF.Unable to display preview. Download preview PDF.Copyright information© Springer-Verlag 2011