1. Department of Renal MedicineClinical Research Centre for Rare Diseases “Aldo e Cele Daccò”: Istituto di Ricerche Farmacologiche Mario Negri IRCCS Ranica (Bergamo) Italy
2. Unit of Nephrology and DialysisAzienda Socio‐Sanitaria Territoriale Papa Giovanni XXIII Bergamo Italy
3. Clinical Department of EndocrinologyDiabetes and Metabolic Diseases University Medical Centre Ljubljana Ljubljana Slovenia
4. Chair of Nephrology, Department of Public HealthFederico II University of Naples Naples Italy
5. Unit of Diabetology and Metabolic DiseasesAzienda Socio‐Sanitaria Territoriale Bergamo Ovest Treviglio‐Caravaggio‐Romano (Bergamo) Italy
6. Unit of Diabetology and EndocrinologyAzienda Socio‐Sanitaria Territoriale Papa Giovanni XXIII Bergamo Italy
7. Chair of Nephrology, Genomics of Renal Diseases and Hypertension Unit, IRCCS San Raffaele Scientific Institute‐Chair of NephrologyUniversità Vita Salute San Raffaele Milan Italy
8. Department of Nephrology and DialysisHospital “S. Marta e S. Venera” Acireale (Catania) Italy
9. Department of Nephrology and DialysisHospital “Azienda Ospedaliera di Parma” Parma Italy
10. Department of Nephrology and Dialysis, Research Hospital “Casa Sollievo della Sofferenza” San Giovanni Rotondo (Foggia) Italy
11. Poliambulatorio Extra‐ospedalieroASST Bergamo Ovest Brembate di Sopra (Bergamo) Italy
12. Institute of Medical PathologyUniversity AUSL 1 Sassari Italy
13. L. Sacco, Department of Biomedical and Clinical ScienceUniversity of Milan Milan Italy