PRRT3 and hepatocellular carcinoma: The risk score of each HCC patient = (0.0979*PRRT3-AS1) + (0.0896*RP11-479G22.8) + (0.0616*RP11-73M18.8) + (0.2431*LINC01138) + (0.1271*CTD-2510F5.4) + (− 0.5400*CTC-297N7.9) + (0.2590*RP11-324I22.4).