REST and neoplasm: Among WNT, Group 3, and Group 4 MB tumor samples, a positive correlation between REST and ETS1 was detected in Group 4 tumors (r = 0.31, P < 0.0001), with a significant correlation seen in Group 4 α (r = 0.38, P < 0.0001), β (r = 0.27, P = 0.005) and γ (r = 0.35, P < 0.0001) tumor subtypes (Fig. S10J‐L).