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Changes of fractional anisotropy (FA) (A, C) and entropy (B, D) values in the lesion and boundary areas. At 2 weeks after traumatic brain injury (TBI) (A, B), no statistical differences among the three treatment groups are found for either FA or entropy values either in the lesion or in the boundary area. At 3 weeks after TBI (C, D), however, significant increased FA and entropy are detected in the boundary area only in the 6 h cell-treated animals compared with the controls.
