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(A) A macroscopic view of a full-thickness wound of 6 mm in diameter on the day of surgery. The wound margin is indicated by the white broken line. Scale bar: 5 mm. (B) A macroscopic view of the wound healing process on days 4, 7 and 14 in the C-hPL, CL-hPL and L-hPL groups. Scale bar: 5 mm. (C) The comparison of the remaining wound area on days 4, 7 and 14.
