\documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{upgreek}\usepackage{mathrsfs}\setlength{\oddsidemargin}{-69pt}\begin{document}}{}$S(x)$\end{document} = −3.70 + (diagnosis of HCC × 1.73) + (CP-B or C × 0.86) + (viral hepatitis infection status × 1.00) + (MLD × 0.05). Here, CPB1 is linked to hepatocellular carcinoma.