1 European Annals of Otorhinolaryngology, Head & Neck Diseases, Elsevier, 65, rue Camille-Desmoulins, 92130 Issy-les-Moulineaux, France; Service ORL, université Paris Cité, HEGP, AP-HP, 20-40, rue Leblanc, 75015 Paris, France. Electronic address: ollivier.laccourreye@aphp.fr.