1. Division of Plastic and Reconstructive Surgery, Stanford University School of Medicine, Stanford, Calif.
2. Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Stanford University School of Medicine, Stanford, Calif.
3. Department of Bioengineering and Regenerative Medicine, Royal College of Surgeons in Ireland, St. Stephen’s Green, Dublin, Ireland
4. Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, Calif.
5. Stanford University School of Medicine, Stanford, Calif.