1. c/o European Federation of Clinical Chemistry and Laboratory Medicine (EFLM) , Milan , Italy
2. Department of Clinical Chemistry , Harrogate and District NHS Trust , Yorkshire , UK
3. Department of Laboratory Diagnostics , University Clinical Centre Maribor , Maribor , Slovenija
4. Department of Laboratory Diagnostics , University Hospital Centre Zagreb , Zagreb , Croatia
5. Department of Clinical Biochemistry and Haematology, Medical Faculty , Charles University and University Hospital , Plzen , Czech Republic