1. Department of Otology and Laryngology, Harvard Medical School and the Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, Boston, Massachusetts.
2. Laboratory for Tissue Engineering and Organ Fabrication and the Department of Surgery, Harvard Medical School and the Department of Surgery, Massachusetts General Hospital, Boston, Massachusetts.
3. Department of Plastic Surgery, Washington University St. Louis, Missouri.
4. Laboratory for Tissue Engineering and Organ Fabrication; Department of Surgery, Harvard Medical School; Department of Surgery, Massachusetts General Hospital, Boston, Massachusetts.