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Study design. Photosynthetic scaffolds were implanted in patients previously recruited by Hospital del Salvador, Chile. Implanted scaffolds were illuminated during the first 7 days. On day 21 after implantation, an autologous split-thickness skin graft was surgically fixed over the previously implanted photosynthetic scaffold. All patients were evaluated and observed for up to 90 days. Blood and biopsy samples were taken at time points indicated in the figure.
