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Immunohistochemistry of patch test lesions (48 hours) of patients JS, AP, and EB. For immunostaining (ABC/AP method), the following monoclonal antibodies were used: anti-CD4 (a), anti-CD8 (b), anti-granzyme B (c), anti-perforin (d), anti-Fas (e), and anti-FasL (f). Original magnifications, ×250.
