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. 2012 Jul 3;7(7):e40068. doi: 10.1371/journal.pone.0040068

Figure 1. Depiction of sample flow and quality control points in the commercial laboratory.

Figure 1

Process from whole blood sample to GES calculation consists of 4 laboratory steps and then quality control algorithm score calculation by a LIMS. Both sample controls (positive and negative) and process QC checks are used as indicated.