1. Department of Otolaryngology, Hôpital Fondation Adolphe de Rothschild, Paris, France
2. Department of Paediatric Otolaryngology, AP-HP, Hôpital Necker-Enfants Malades, Paris, France
3. Department of Otolaryngology, Hôpital Pitié-Salpétrière, Paris, France
4. Department of Otolaryngology, Hôpital Lariboisière, Paris, France