PTP4A1 and neoplasm: PTP4A1 was scored as strong or moderate intensity in 64.3% (207 of 322: strong, n=47; moderate, n=160) of tumor tissues, whereas only 23.0% (74 of 322: strong, n=35; moderate, n=39) of corresponding adjacent normal intrahepatic biliary tissues was scored as strong or moderate intensity (Figure 1D).