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Experimental sciatic injury and repair in the autograft, PCL, and PCL + MSC groups. a The experimental lesion consisted of a gap of 12 mm, which was considered to be above the experimental critical level in rats. b Nerve stumps were introduced and fixed into the NGC in the PCL group. Scale bar: 1 cm. c NGCs were multi-functionalized with 1 × 106 canine AdMSCs embedded in HFB. Scale bar: 0.5 cm
