ERBB2 and breast neoplasm: The number of genes with expression level changes that either increased more than double or decreased more than half in C3-TAg breast tumors, compared to all other tumors, was larger than the number of genes changed in the other breast tumors (564 genes for C3-TAg, 61 for Neu, 41 for PyMT, 46 for Wnt1) (P < 0.05, LIMMA).