We analyzed the expression of the stemness genes c-Myc, KLF4, Nanog, and OCT3/4 that were previously normalized to ACTB (Fig 1), with the identified top-ranking HKG for CSC and native cells, in sarcoma and carcinoma, respectively (GAPDH and YWHAZ for sarcoma, and PPIA and HMBS for carcinoma). This evidence concerns the gene GAPDH and sarcoma.