Affiliation: | 1. Beckman Laser Institute, University of California, Irvine, California 92612;2. Department of Oral and Maxillofacial Surgery/Pharmacology, University of Pennsylvania, 240 South 40th Street, Philadelphia, Pennsylvania 19104;3. Division of Otolaryngology and Head and Neck Surgery, City of Hope 1500 East Duarte Road, Duarte, California 91010 |