1. Clinical Chemistry Laboratory; Hospital Papa Giovanni XXIII; Bergamo Italy
2. Pathology; Hospital Papa Giovanni XXIII; Bergamo Italy
3. Immunohaematology and Transfusion Medicine Unit; SS Trinità Hospital; Borgomanero Italy
4. Synlab; Monza Italy
5. Orthopedics and Traumatology Unit; Hospital Papa Giovanni XXIII; Bergamo Italy
6. Section of Clinical Biochemistry; University of Verona; Verona Italy