1. Medical Genetics; University of Siena; Siena Italy
2. Genetica Medica; Azienda Ospedaliera Universitaria Senese; Siena Italy
3. Department of Medicine, Nephrology Clinic; University of Padova; Padova Italy
4. Nephrology and Dialysis Unit; Hospital Belcolle; Viterbo Italy
5. S.C. Medical Genetics; A.O. City of Health and Science; Torino Italy
6. Clinical Genetics Unit, Department of Woman & Child Health; University of Padova; Padova Italy
7. Department of Pediatrics; Second University of Napoli; Napoli Italy
8. Nephrology DH; Pediatric Clinic of the University of Brescia; Brescia Italy
9. Medical Genetics, San Luigi University Hospital; Orbassano Italy
10. Nephrology Dialysis and Transplantation Unit; Institute “G Gaslini”; Genova Italy
11. Medical Genetics; University Hospital “Tor Vergata”; Roma Italy
12. Medical Genetics; Azienda Unita Locale Socio-Sanitaria n° 9; Treviso Italy
13. Nephrology and Dialysis S.O.C., Department of General Medicine and Medical Specialties “Giuseppe Spada”; A.O. Pugliese-Ciaccio; Catanzaro Italy
14. U.O.C. Pediatric Nephrology and Hemodialysis, U.O.C. Nephrology, Dialysis and Renal Transplantation, Audiology Unit; Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policilinico; Milano Italy
15. I.R.C.C.S., Istituto di Ricerche Farmacologiche Mario Negri; Clinical Research Center for Rare Diseases “Aldo e Cele Daccò”; Ranica (BG) Italy
16. University of Torino; Dept. Clinical & Biological Sciences; Torino Italy