1. ORL Department, Hôpital Boucicaut, Faculty Necker-Enfants-Malades, University Paris V, Paris, France
2. ORL Department, Hôpital Robert Debré, Faculty Bichat, University Paris VII, Paris, France
3. Biophysics Department, Hôpital Lariboisière, Faculty Lariboisière, University Paris VII, Paris, France