We did an analysis of available breast cancer gene expression data generated by platform GPL570 (Affymetrix Human Genome U133 Plus 2.0 Array) in the GEO database and found that there are 29,631 samples, of which ~85% do not have ER information, ~88% do not have HER2 information, and ~95% do not have race information. This evidence concerns the gene ESR1 and breast carcinoma.