We found increased glycolysis in breast tumors vs. normal breast, in Luminal B vs. Luminal A tumors, in HER2 vs. Luminal A tumors, in TNBC vs. luminal A tumors, and in metastasis vs. primary breast tumors, corroborating previous reports that glycolysis is related to aggressiveness in breast tumors [31]. The gene discussed is ERBB2; the disease is breast neoplasm.