Figure 1

Variation of the intensity of HER2 membranous staining and the percentage of cells with complete membranous staining in the consecutive tissue multi-control sections. Mean intensity of the average HER2 membranous stain and Mean percentage of cells with complete membranous staining are represented by the orange and blue lines, respectively. The means are calculated from all 4 samples of the tissue multi-control. Dashed orange and blue reference lines delineate the corresponding upper and lower quartiles.