Also, bFGF and TGF-\documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlength{\oddsidemargin}{-69pt}\begin{document}$$\beta$$\end{document} were reported to maintain stemness in lung cancer [97] and colon cancer [98]. This evidence concerns the gene FGF2 and lung cancer.