Fig. 1From: Clinical evaluation of an authorized medical equipment based on high performance liquid chromatography for measurement of serum voriconazole concentrationRegression analysis for measured concentrations by LM1010 against outsourcing. The left panel is of the standard filter method, while the right panel is of the dilute method. White circles indicated measured values. Bold lines indicate regression lines. Dashed lines indicate 95% CI of corresponding regression lines. Shade area indicate the acceptable measurement error range of 0.72–1.32Back to article page