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Individual IgM (a–c) and IgG (d–e) (see next page) immunoreactivity values in patient sera expressed as optical density (OD). (a,d) Patient samples with normal IgM repertoire diversity. (b,e) Patient samples with deviant IgM repertoire diversity. (c,f) Patient samples with very deviant IgM repertoire diversity. Individual reactivities in antigenic sections are represented by (+). Pooled human IgM (a–c) and intravenous immunoglobulin (IVIG) (d,e) are represented by solid lines.
