EPCAM and invasive breast carcinoma: Median fold change of CD44 expression in the EpCAM(+) fraction was 0.71 (range: 0.14–1.06) in HD and 2.33 (range: 1.28–202.75) in CD44high (Mann-Whitney test, Ζ = −6.084, p < 0.001) and 0.61 (range: 0.01–1.17) in CD44low early BrCa patients (Mann-Whitney test, Ζ = −1.084, p = 0.278) (Figure 1C).