CLINICAL CHEMISTRY AND LABORATORY MEDICINE, cilt.51, sa.5, ss.1007-1025, 2013 (SCI-Expanded)
Background: In a planned International Federation of Clinical Chemistry and Laboratory Medicine (IFCC) worldwide study on reference intervals (RIs), a common panel of serum samples is to be measured by laboratories from different countries, and test results are to be compared through conversion using linear regression analysis. This report presents a validation study that was conducted in collaboration with four laboratories.