KMT2A and acute lymphoblastic leukemia: On the class discovery module, the clustering and validity methods were able to perfectly distinguish two leukemia subtypes in the data, Mixed Lineage Leukemia (MLL) and Acute Lymphoblastic Leukemia (ALL), while the samples for a third subtype, Acute Myeloid Leukemia (AML), could only partly be separated from the other two groups.