1. Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, United States
2. Center for Advanced Orthopedic Studies, Beth Israel Deaconess Medical Center, 330 Brookline Ave., RN 115, Boston, Massachusetts 02215, United States
3. Divisions of Plastic Surgery and Otolaryngology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215, United States