SPRY2 and hepatocellular carcinoma: For each standard deviation increase in protein–protein pair expression, susceptibility to HCC fluctuated from 0.4974 (95% confidence interval [CI]: 0.2506–0.9871) for the LAT2/SPRY2 protein pair to 1.9763 (95% CI: 1.3009–3.0026) for the ERBIN/LAT2 protein pair.