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Fig. 7 Proximal amputation of the maxillary barbel induces wound healing and blastema formation.
A) Procedure for a unilateral “barbectomy”. The left maxillary barbel (mb) is amputated at the posterior margin of the maxilla. The contralateral barbel (not shown) is left as a non-surgical control. B–D) Fixed, unstained barbel regenerates collected immediately post surgery (B, 0 hps), or after 24 and 72 hours, respectively (C, D). Wound healing is followed by an accumulation of small, rounded mesenchymal cells underneath the epithelium (e) and around the central rod (cr).
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