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Medial SMC apoptotic index was assessed by TUNEL assay at 20 days after transplantation in: syngeneic controls (Syn), CD8+ T cell-depleted animals (L(↓CD8)) and wild-type animals (WT). *, P < 0.02 between syngeneic and CD8+ T cell-depleted animals; **, P < 0.001 between wild-type and CD8+ T cell-depleted animals. Five animals per group were used.
