Figure 1From: Histopathological grading of pediatric ependymoma: reproducibility and clinical relevance in European trial cohortsProgression-free (PFS) and overall survival (OS) in four European trials. (a) PFS and (b) OS by trial. Black line = SFOP; red line = CNS9204; blue line = CNS9904; and green line = AIEOP.Back to article page