Fig. 2. Percentages of acceptable performances and sample concentrations ranging from approximately 6.0% to 7.0% obtained from 10 EQA samples for HbA1c according to different performance goals.
Abbreviation: EQA, external quality assessment.

Ann Lab Med 2023;43:425~433 https://doi.org/10.3343/alm.2023.43.5.425