Journal of Laboratory Medicine and Quality Assurance

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Fig. 2.

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Fig. 2.

Average percent bias change in the direct HDL cholesterol assay of each manufacturer in the accuracy-based lipid EQA program (2016–2018). Abbreviations: HDL, high-density lipoprotein; EQA, external quality assessment. The instruments were from the following companies: Roche Diagnostics (Mannheim, Germany); Beckman Coulter Inc. (Brea, CA, USA); Sekisui Medical Co. Ltd. (Tokyo, Japan); Kyowa Medex Co. Ltd. (Tokyo, Japan); and Siemens Healthcare Diagnostics Inc. (Erlangen, Germany).

J Lab Med Qual Assur 2019;41:121-9 https://doi.org/10.15263/jlmqa.2019.41.3.121
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