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. 2020 Oct 22;151(2):181–191. doi: 10.1007/s11060-020-03647-w

Fig. 1.

Fig. 1

Overall survival depends on tumor histology and WHO grade (II-IV) with a steep drop in survival probability in patients with WHO IV tumors and a flatter line in patients with WHO II tumors (upper image, p = 0.052); Survival function in relation to the extent of resection (EOR) categorized in tumor biopsy, tumor debulking, subtotal tumor resection (STR), and gross total resection (GTR) (lower image, p = 0.616)