1omi_departments of Head and Neck Surgery, Rouen University Hospital, Rouen, France
2omi_departments of Pathology, Rouen University Hospital, Rouen, France
*Corresponding Author:
Olivier Choussy, Department of Head and Neck surgery, Rouen University Hospital-Charles Nicolle rue de Germont, 76031 Rouen, France, Tel: 33-232 886 614, Fax: 33-232 888 359 Email: