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Walk the Even Hospital Database by book and chapter — the raw source passages that ground Ask, DDx, and the rest.

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contentuptodate· Content· item f16_17_16657

©2013 UpToDate ® Print Email Peripheral blood flow cytometry profile in HIGM CD40L (aka CD154) expression in unstimulated and stimulated CD4+ T cells. Normal individuals show CD40L upregulation, while patients with X-linked hyper IgM (XL-HIGM) syndrome do not. Carriers of the mutation show bimodal expression pattern.