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Fig. 2.

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Fig. 2.

Graphical illustration of how MR QC procedure detects a systematic error. The horizontal green line in the middle of the graph represents the mean of the MR of positive patient results (negative results=hs-cTnT below 5 ng/L; positive results=hs-cTnT above 5 ng/L). The horizontal red lines represent the upper or lower control limits.

Abbreviations: hs-cTnT, high-sensitivity cardiac troponin T; MR, moving rate. QC, quality control.

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