LY6E and neoplasm: Ly6E mRNA expression was significantly high in ductal N1+ stage (n= 222) than ductal N0 stage (n=274) in Bittner (unpublished, GSE2109), Julka [110], and Ivshina [61], studies and grade 3 tumor (n=334) than grade 1 (n=334) in Loi [111], Buffa [112], Miller [113] and Sotiriou [114] studies, grade 3 (n=64) than grade 2 (n=34) in Bonnefoi [62] study, invasive ductal (n=31) than non-invasive ductal (n=3) in Radvanyi [73] study.