ERBB2 and neoplasm: There were no significant differences between the mean normalized levels of DDX43 mRNA expression in different groups based on body mass index, menopausal status, tumor size (T2 vs. T3-4), TNM stage, lymph node stage, tumor type, mitosis score (2 vs. 3), tubular formation score, histological grade, tumor grade (grade 1 vs. grade 2), hormonal receptors (progesterone receptor negative vs. positive), HER2 Family, NPI, biological classes and NPI+ for the biological classes (Results are not shown).