Laboratory Medicine and Quality Assurance

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Fig. 1. Mean percentage bias for the manufacturers of reagents used by more than 50 participants. Data from the 2023 accuracy-based creatinine proficiency testing conducted by the Korean Association of External Quality Assessment Service. Outliers were eliminated using the Tukey method.
Lab Med Qual Assur 2024;46:78~86 https://doi.org/10.15263/jlmqa.2024.46.2.78
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