1. Department of Otorhinolaryngology, Bichat Hospital, Paris, France
2. Pathology Department, Bichat Hospital, Paris 7 University, Paris, France
3. Pathology Department, Beaujon Hospital, Paris 7 University, Paris, France
4. Medical Oncology Department, Saint-Louis Hospital, Paris 7 University, Paris, France
5. Medical Oncology Department, Paris-St Joseph Hospital, Paris, France