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. Author manuscript; available in PMC: 2017 Nov 1.
Published in final edited form as: Appl Immunohistochem Mol Morphol. 2016 Nov-Dec;24(10):688–694. doi: 10.1097/PAI.0000000000000260

Figure 5.

Figure 5

Levey-Jennings graph at institution 3, depicting the PR staining percentage (left-hand vertical axis) and antigen-coated beads’ PR stain intensity (“IHControls”, right-hand vertical axis) during October - December, 2014. Each data point is a single quality control, derived from the mean of 3 - 4 images.