We meticulously scored the staining intensities of ASPM‐iI, ASPM‐iII, and ALDH‐1 at the single‐cell resolution in multiple tissue sections from the same tumors (three tissue sections per tumor; at least 100 tumor cells counted per section) and stratified the patients according to the percentage of tumor cells in their tumors exhibiting a high (≥ 2+) staining intensity of each of these markers, which was denoted as the ‘staining index (SI)’ of said marker. This evidence concerns the gene ALDH1A1 and neoplasm.