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Development of a risk-model for unselected OPSCC. Multivariate analysis of patient characteristics and risk factors by recursive partitioning (A). The order of survival plots has been modified in the conditional interference tree for visualisation. Overall survival of patient groups as determined by recursive partitioning (B) and after dividing into patient groups with low (L: node 10), intermediate (I: node 4+6+11) and high (H: node 7+8) risk (C) (n=359).
