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Prognostic relevance of NED in PDCRC. (a) Kaplan-Meier survival analysis of all patients. There were no survival differences between the NED(+) and NED(−) groups. (b) The NED(+) group was divided into subgroups (SG) 1, 2, and 3 according to the number of NED(+) cells per HPF. While none of the 3 subgroups were significantly correlated with cumulative survival, subgroup 1 tended to have a worse prognosis than did the NED(−) group.
