PRDM1 and diffuse large B-cell lymphoma: In contrast, non-GCB DLBCL defined by two of the three COO algorithms exhibited elevated BLIMP1 expression, using either a 40% cut-off (Table 1: Hans P = 0.0044; Choi P = 0.0159) or 10% frequency increments (Figure 3B: Hans P = 0.0022; Choi P = 0.0490).