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. 2018 Jul 25;7(9):4193–4201. doi: 10.1002/cam4.1499

Figure 4.

Figure 4

(A) Kaplan–Meier survival curves for patients stratified by tumor location (P < 0.0001). (B) Kaplan–Meier survival curves for patients stratified by tumor length (P < 0.0001). (C) Kaplan–Meier survival curves for patients stratified by tumor grading (P < 0.0001). (D) Kaplan–Meier survival curves for patients stratified by treatment method (P < 0.0001).