1. Division of NephrologyDepartment of Internal MedicineUniversity of GroningenUniversity Medical Centre GroningenGroningen The Netherlands
2. Department of NephrologyLeiden University Medical CentreLeiden The Netherlands
3. Department of SurgeryUniversity of GroningenUniversity Medical Centre GroningenGroningen The Netherlands
4. Laboratory of Ageing Biology and Stem CellsEuropean Research Institute for the Biology of AgeingUniversity of GroningenUniversity Medical Centre GroningenGroningen The Netherlands
5. Department of PathologyUniversity of AmsterdamAcademic Medical CentreAmsterdam The Netherlands
6. Division of PathologyDepartment of Pathology and Medical BiologyUniversity of GroningenUniversity Medical Centre GroningenGroningen The Netherlands