1. Hagey Laboratory for Pediatric Regenerative Medicine, Department of Surgery, Stanford University School of Medicine, Stanford, California.
2. Department of Craniofacial Development and Stem Cell Biology, Dental Institute, King's College London, London, United Kingdom.
3. Department of Plastic and Reconstructive Surgery, North Western Deanery, Manchester, United Kingdom.
4. Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, California.
5. Department of Craniofacial Surgery, Great Ormond Street Hospital, London, United Kingdom.
6. Dipartimento di Scienze Biomediche Avanzate, Universita’ degli Studi di Napoli Federico II, Napoli, Italy.