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(A) Recursive partitioning tree for RFS. Light grey (green online) ovals represent intermediate subgroups; light grey (pink online) squares represent terminal nodes. Dark grey (blue online) rectangles indicate predictive polymorphism. Fractions within nodes indicate patients who relapsed/total patients with that node. Node 1 represents low-risk patients. Node 2 and 3 represent intermediate risk patients. Node 4 represents high-risk patients. (B) Kaplan–Meier curves for terminal nodes.
