1. Clinical Chemistry Laboratory Abele Ajello Hospital Mazara del Vallo Italy
2. Medicine Laboratory IRCCS Ospedale Policlinico San Martino Genova Italy
3. Clinical Chemistry Laboratory Papa Giovanni XXIII Hospital Bergamo Italy
4. Clinical Pathology Unit ASST Fatebenefratelli‐Sacco Milan Italy
5. Clinical Chemistry Laboratory Policlinico San Matteo‐IRCCSUniversity of Pavia Pavia Italy
6. Clinical Chemistry Laboratory Policlinico San Pietro ‐ Istituti Ospedalieri Bergamaschi San Pietro Italy
7. Hematological diagnostic Laboratory P. O. “A. Tortora” Pagani Italy
8. Clinical Chemistry Laboratory Avezzano Civic Hospital Avezzano Italy
9. Section of Clinical Biochemistry University of Verona Verona Italy
10. Laboratory Department Azienda Ospedaliera Careggi Florence Italy
11. Department of Clinical Chemistry and Microbiology ASL Novara Borgomanero Italy
12. Department of Clinical Chemistry Versilia Hospital Lido di Camaiore Italy
13. Laboratory Medicine Fondazione G. Monasterio CNR Regione Toscana Pisa Italy
14. Clinical Chemistry Laboratory Ospedali Riuniti Padova Sud Schiavonia Italy
15. Clinical Chemistry and Hematology Laboratory University Hospital of Parma Parma Italy
16. Clinical Chemistry Laboratory Department of Health Sciences Maggiore Carità HospitalUniversity of Eastern Piedmont Novara Italy