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. 2021 Jun 16;9:681501. doi: 10.3389/fbioe.2021.681501

SCHEME 1.

SCHEME 1

The schematic illustration of the experimental procedure. The serum-containing (SC) and serum-free secretome (SF) were harvested by maturing the fully confluent adipose tissue-derived stem cells (ADSCs). The secretome was applied to the in vivo skin wound and tried to be delivered transdermally using the ex vivo porcine skin.