1. Department of Anesthesiology and Intensive Care, Desgenettes Military Hospital, 108 bd Pinel, 69003 Lyon
2. Department of ENT, Laveran Military Hospital, Bd Lavéran, BP50, 13013 Marseille
3. Department of Anesthesiology and Intensive Care, Robert Piqué Military Hospital, 351 rte de Toulouse, 33140 Villenave d'Ornan, France