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Sample quality assessment by the MxP Biofluids Quality Control assay: (A) MxP Blood Processing Control and (B) MxP Sample Processing Control were calculated in score for each sample, and the cut-offs were set to ≥50 for high-quality samples and <20 for low-quality samples. Please note that quality scores are not displayed for all samples as metabolite levels needed for the assay were in some cases below the limit of detection of the analytical method.
