Text and Data Mining valid from 2019-01-02
Received: 14 October 2018
Accepted: 10 December 2018
First Online: 2 January 2019
Compliance with ethical standards
: MLN,JMR,EG,BS,MG,PJ - Speaker’s honoraria from Fresenius Medical Care, MLN,MC,BN,EG,BS,EW,ES,MG,RK- Speaker’s honoraria from Baxter, BN,BS - Speaker’s honoraria from MSD, BN - Speaker’s honoraria from Amgen, JMR, BN,BS - Speaker’s honoraria from Roche, BS - Speaker’s honoraria from Servier, MLN,BN,JMR,EG,ES,BS,MG - Travel sponsorship from Fresenius Medical Care, BS - Travel sponsorship from Servier, MLN, PJ, BM, MA,KK,RK,KC - employees of Fresenius Nephrocare Dialysis Units, MB declares that he has no conflict of interest
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. The study contains retrospective observational data. For this type of study formal consent is not required. Protocol of the study received approval from the Local Bioethics Committee.