1 Department of Nephrology and Hypertension, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland. Electronic address: Manuel.anderegg@dbmr.unibe.ch.
2 Department of Nephrology and Hypertension, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.
3 Institute of Pathology, University of Bern, Bern, Switzerland.