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Effect of simulated µg and PRP treatment on in vivo model of sutured wound healing (Hirudo medicinalis): healing evolution at 144 h. Hematoxylin–eosin-stained cross sections. The panels show the state of the wounds (arrows) on the back of control animals (1× g) and animals exposed to simulated µg for 144 h, with or without PRP addition. Letterings are as follows: e, epidermis; d, dermis; mf, muscle fibers; ne, neo-epidermis. Calibration bars are in µm, as indicated.
