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Changes in CD4+ and CD8+ T cell infiltration before (a, b) and 4 months after (c, d) corticosteroid therapy in patient 5. The extent of CD4+ T cell (a, c) and CD8+ T cell (b, d) infiltration in the lesions remained largely constant, even after therapy (a, c CD4 ×100, b, d CD8 ×100)
