NPM1 and acute myeloid leukemia: Of the samples, 5 were wt-NPM1: AML 37; AML 61; AML 76; AML 94; AML 100; and 7 were mut-NPM1: AML 8; AML 34; AML 72; AML 74; AML 75; AML 95; and AML 99.