Fig. 4From: IgG anti-hinge antibodies against IgG4 F(ab’)2 fragments generated using pepsin are useful diagnostic markers for rheumatoid arthritis: implications of the possible roles of metalloproteinases and IgG subclasses in generating immunogenic hinge epitopesFrequency distribution of cumulative number of hinge epitopes recognized by IgG AHA (a) or IgA AHA (b) from each patient with RA or each HC. Depicted are the percentages of RA patients and HCBack to article page