Fig. 4
From: Typing tumors using pathways selected by somatic evolution
Hierarchical stratification and characteristic ESPs of head and neck cancer. a Hierarchical organization of tumors at increasing subtype resolution. Layer k of the hierarchy corresponds to clustering cancer patients into k subtypes (k = 1,2,3,4). b–d Kaplan–Meier survival plots when stratifying tumors into two (b), three (c), or four (d) subtypes. e Mutated ESPs used in assortment of patients into four subtypes
