1. Laboratory Medicine IRCCS Ospedale Policlinico San Martino Genoa Italy
2. Clinical Chemistry Laboratory Papa Giovanni XXIII Hospital Bergamo Italy
3. Department of Laboratory Medicine University‐Hospital of Padova Padova Italy
4. UOC Clinical Chemistry Laboratory Ospedali Riuniti Padova Sud Schiavonia Veneto Italy
5. Clinical Chemistry and Hematology Laboratory University Hospital of Parma Parma Italy
6. Clinical Chemistry Laboratory Hospital L'Aquila Italy
7. Section of Clinical Biochemistry University of Verona Verona Italy
8. Department of General Laboratory Careggi University Hospital Florence Italy
9. Department of Clinical Chemistry and Microbiology Novara Italy
10. Clinical Chemistry Laboratory IRCCS Humanitas Milan Italy
11. Department of Laboratory and Transfusional Medicine Careggi University Hospital Florence Italy
12. Synlab Italy Castenedolo Italy
13. Department of Health Sciences University of Eastern Piedmont ‘Amedeo Avogadro’ Novara Italy
14. Unified Metropolitan Laboratory Bologna Italy
15. Laboratory Medicine Asiago Italy
16. Regional Reference Center for the Quality of Laboratory Medicine Services Milan Italy