1. Nephrology and Dialysis Unit, Meyer Children's Hospital IRCCS, Florence, Italy
2. Department of Biomedical, Experimental and Clinical Sciences “Mario Serio,” University of Florence, Florence, Italy
3. Medical Genetics Unit, Meyer Children's Hospital IRCCS, Florence, Italy
4. IRES Piemonte, Turin, Italy
5. Nephrology and Dialysis Unit, Santo Stefano Hospital, Prato, Italy
6. Nephrology, Dialysis and Transplantation Unit, Careggi University Hospital, Florence, Italy
7. Nephrology and Dialysis Unit, Cisanello Hospital, Pisa, Italy
8. Nephrology Unit Florence 1, Santa Maria Annunziata Hospital, Bagno a Ripoli, Florence, Italy
9. Nephrology and Dialysis Unit, San Giovanni di Dio Hospital, AUSL Toscana Centro, Florence, Italy
10. Division of Nephrology, Medizinische Klinik and Poliklinik IV, Klinikum der LMU München, Munich, Germany