1 Otolaryngology-Head and Neck Surgery Service, Université de Montréal Hospital Center (CHUM) and Maisonneuve-Rosemont Hospital, Montreal, Canada.
2 Otolaryngology-Head and Neck Surgery Service, Université de Montréal Hospital Center (CHUM) and Maisonneuve-Rosemont Hospital, Montreal, Canada Tareck.ayad@umontreal.ca.