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Figure 1: Expression of CD40 on B cells. Panel a and c: B-cell gating on side scatter and CD19 in normal and patient, respectively. Panel b: Normal expression of CD40 on B-cells. Panel d: B-cells with absence of CD40 expression in patient

Figure 1: Expression of <i>CD40</i> on B cells. Panel a and c: B-cell gating on side scatter and CD19 in normal and patient, respectively. Panel b: Normal expression of <i>CD40</i> on B-cells. Panel d: B-cells with absence of <i>CD40</i> expression in patient