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Immunohistochemical findings. (a) Treatment group. Intravenously transplanted bone marrow stromal cells 7 days after ischemia have migrated to the hippocampal area around the injured site. The arrows indicate Brdu-positive bone marrow stromal cells. (b) Vehicle group which received PBS 7 days after ischemia. There is no Brdu-positive bone marrow stromal cells.
