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. Author manuscript; available in PMC: 2017 Feb 1.
Published in final edited form as: Clin Biochem. 2015 Oct 30;49(3):201–207. doi: 10.1016/j.clinbiochem.2015.10.019

Figure 2. Effect of time of day and day of the week on mean test results.

Figure 2

The hourly mean (Panel A and C) or daily mean (Panel B and D) of each test in the Chem-14 panel was calculated and plotted against time. Tests were grouped into 2 categories based on the differential effect of time on test result distributions (n=179,280)