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(A) Kaplan-Meier curves for predicting short and long progression-free survival (PFS) in the (left) discovery and (right) replication cohorts of multi-institutional data in scheme 2 (in one of the random partitioning iterations). (B) Analysis of classification performances using receiver operating characteristic curves for (left) PFS prediction based on schemes 1 to 3 and (right) recurrence pattern (RP) prediction on the basis of schemes 4 to 6.
