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Expression of intracellular interferon γ (IFNγ) (panel A) and interleukin 4 (IL4) (panel B) in stimulated peripheral T helper (Th) and T cytotoxic (Tc) cells of patients with dermatomyositis (DM) and polymyositis (PM). The samples were measured by flow cytometry, and lymphocytes were identified on their scatter properties and CD4/CD8 positivities.
