Funding for this research was provided by:
Vifor Pharma (Vifor Pharma SA provided unrestricted support for the three working party meetings to draft this manuscript but had no input in the content of the manuscript and did not influence the discussions at the meetings.)
Received: 18 December 2019
Revised: 22 January 2020
Accepted: 27 January 2020
First Online: 4 February 2020
Compliance with ethical statements
: The authors declare that they have no conflict of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors.