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October 9, 2012 ; 97 (10)
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Immunohistochemical analysis of skin tissue biopsies from an individual with acute graft-versus-host-disease. Scattered ICOS+ activated lymphocytes were observed at the dermo-epidermal junction, superficial dermis and around the adnexal follicular epithelium. Figure taken from the article by Maria Cuzzola and colleagues on page 1532).