ADGRG1 and B-cell chronic lymphocytic leukemia: Indeed, high GPR56 surface expression at diagnosis was associated with significantly lower OS (median OS 284 vs 769 days; P = 0.0241, Figure 3A), while expression of CLL‐1 did not show prognostic significance (median OS 463 vs 352 days; P = 0.4, Figure 3B).