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Figure 1: Gel documented photograph of PCR products for HLA-DR4 and -action as an internal control. In this document, cases 2 and 5 are positive for HLA-DR4 and cases 1, 3, and 4 are negative

Figure 1: Gel documented photograph of PCR products for HLA-DR4 and -action as an internal control. In this document, cases 2 and 5 are positive for HLA-DR4 and cases 1, 3, and 4 are negative