1. Department of NephrologyUniversitair Medisch Centrum Groningen, University of GroningenGroningen The Netherlands
2. Erasmus School of Health Policy & ManagementErasmus UniversityRotterdam The Netherlands
3. Dialysecentrum Midden Nederland, Meander Medisch CentrumAmersfoort Harderwijk The Netherlands
4. Ziekenhuis St. Jansdal and Dialysecentrum Midden NederlandHarderwijk The Netherlands
5. Meander Academie, Meander Medisch CentrumAmersfoort The Netherlands
6. Amsterdam UMC, Vrije Universiteit Amsterdam, Zorgsupport and NephrologyAmsterdam The Netherlands