1. National Research Council (CNR)—Institute of Clinical Physiology (IFC), Via G. Moruzzi 1, 56124 Pisa, Italy
2. Department of Medicine, University of Padova, Via Giustiniani, 2, 35128 Padova, Italy
3. Institute of Investigation and Innovation in Health, University of Porto, 4200-135 Porto, Portugal
4. INEB—National Institute of Biomedical Engineering, University of Porto, 4150-180 Porto, Portugal
5. DaVita Kidney Care, 4200-448 Porto, Portugal
6. Faculty of Medicine, University of Porto, 4200-250 Porto, Portugal
7. Nephrology Department, University Hospital Germans Trias i Pujol (HGiTP), 08916 Barcelona, Spain