Hsp70 membrane expression on biopsies of SCCHN patients. A. The cells stained with FITC-labeled cmHsp70.1 monoclonal antibody corrected with IgG1 isotype-matched control antibody are depicted in box plots. Data from patients’ tumor cells (n = 21) were divided into low (n = 10) and high (n = 11) mHsp70 expressing cells. Single cells from healthy donors (n = 7) derived from connective tissues were used as controls. B. Mean fluorescence intensity from the same data set as shown in A. Standard box plots are shown with boundaries indicating the 25th and the 75th percentile. The line inside boxes indicates the median and the whiskers indicate the 10th and 90th percentile, respectively. All outliers are included into the graphs. (*p < 0.05, **p < 0.01, ***p < 0.001).