1. Department of Head and Neck surgery; Institut de Cancérologie Gustave Roussy; Villejuif France
2. Department of Radiation therapy; Institut de Cancérologie Gustave Roussy; Villejuif France
3. Department of Virology; Faculty of Medicine University Pierre et Marie Curie Paris VI and Hospital Tenon Assistance Publique Hôpitaux de Paris; France
4. Department of Medical Oncology; Institut de Cancérologie Gustave Roussy; Villejuif France
5. Department of Otolaryngology-Head and Neck Surgery; Faculty of Medicine University Pierre and Marie Curie Paris VI and Hospital Tenon Assistance Publique Hôpitaux de Paris; France