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Walk the evidence base by book and chapter — the raw source passages that ground Ask, Differential, and the rest.

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contentuptodate· Content· item f4_51_4916

©2013 UpToDate ® Print Email B lymphocyte analysis by flow cytometry Top: Patterns of normal B cell differentiation in peripheral blood based on IgD and CD27. Bottom: Patterns of B cell differentiation in peripheral blood of a patient with CVID.