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Several factors were taken into account when planning the trial with micro-fragmented adipose tissue: the harvesting is safe and simple [44], the mechanical fragmentation avoids laboratory manipulation of the product (e.g., enzymatic treatment), the use of minimally manipulated autologous adipose tissue complies with ethics laws, the immunological rejection could be avoided without heterologous and/or allogeneic material, and injecting the graft at the stump level avoids possible complications related to the endovascular delivery [13].
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