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Immunohistochemical detection of CD68+ cells in skin biopsy specimens after treatment of psoriasis with pioglitazone 45 mg. (a) Single immunopositive cell (1) and granular layer (2). Contrasting: Mayer's haemalaun, mg, ×400. Scale bar, 0.2 μm. (b) CD68+ сell number in the patient did not differ significantly.
