In addition, whether S100A9 mRNA can be used as a risk factor to affect the survival of cancer patients in pan-cancer also varies, which can be used as a risk factor to affect the survival of cancer patients in LIHC, ALL, LGG, KIPAN, GBM, PAAD, LAML and BLCA datasets (Figure 2A). Here, S100A9 is linked to glioblastoma.