NPM1 and leukemia: Categories with acute megakaryoblastic or erythroid leukemia (AMKL/AEL) phenotypes are clearly enriched in infants, whereas CBF leukemias and mutation-defining leukemias (e.g., UBTF, NPM1, CEBPA) were enriched in adolescents and young adults (Fig.3A, Fig.S4A-B).