Martin L. Hopp, MD, PhD is medical director of the Cedars-Sinai Sinus Center and an otolaryngologist at the Head and Neck Cancer Center and the Division of Otolaryngology at Cedars-Sinai Medical Center. Dr. Hopp is a pioneer in sinus surgery. He was the first surgeon in the Western United States to perform Image Guided (computer) Sinus Surgery, generally accepted as the safest technique for sinus repair. A much sought after speaker, Dr. Hopp lectures across the country on sinus disease and sinus surgery. He has authored many articles and book chapters on these and other subjects in peer reviewed publications such as Archives of Otolaryngology, Otolaryngology Head and Neck Surgery, the Journal of Clinical Oncology, Laryngoscope and others.