Fig. 8

The Kaplan-Meier (KM) curves of early-stage (I/II) and late-stage (III/IV) samples. a The KM curve of early-stage samples in the training set. b The KM curve of early-stage samples in the testing set. c The KM curve of early-stage samples in the total set. d The KM curve of late-stage samples in the training set. e The KM curve of late-stage samples in the testing set. f The KM curve of late-stage samples in the total set