The mean α-SMA-positive cell density for HCC was 0.0540±0.0611 (median of 0.0389; range, 0.000320 to 0.563), and it was 0.232±0.111 for PC (median, 0.202; range, 0.0494 to 0.474) (Fig. S1A and 1C in File S1). The gene discussed is ACTA1; the disease is hepatocellular carcinoma.