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Time-resolved Doppler ultrasound images of the PHBV/PCL[VEGF-bFGF-SDF]Hep/Ilo grafts implanted into the sheep carotid artery. (A) 24 h postimplantation; (B) 3 months postimplantation; (C) 6 months postimplantation; (D) 18 months postimplantation. Representative images.
