Datzmann, Thomas
Träger, Karl
Schröppel, Bernd
Reinelt, Helmut
von Freyberg, Philipp
Article History
Received: 20 January 2018
Accepted: 26 March 2018
First Online: 2 April 2018
Compliance with ethical standards
:
: Karl Träger received honoraria for lectures from Fresenius Medical Care.