Der InternistMay 2016, Volume 57, Issue 5, pp 470–478 | Cite asMitteilungen des BDIMitteilungen des BDIFirst Online: 11 May 2016 56 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 Berlin Heidelberg 2016