Fig. 1From: Standardizing HER2 immunohistochemistry assessment: calibration of color and intensity variation in whole slide imaging caused by staining and scanningIHC Calibrator Slide for HER2. a Slide overview; b Whole slide image scanned at a resolution of 0.23 μm/pixel; c Microbeads on level 1 to 5 (top right to left), 6 to 10 (bottom right to left)Back to article page