TK1 and central nervous system cancer: Using the data from CGGA, we performed further univariate and multivariate Cox regression analyses, which showed that age, tumor type, WHO tumor grade, IDH mutation status, 1p19q codeletion status, chemotherapy, and TK1 expression were significantly associated with glioma prognosis, except for a broadline significant relationship between radiotherapy and glioma (Tables S2 and S3).