1. IWK Health Centre, Halifax, Nova Scotia, Canada
2. Division of Otolaryngology–Head and Neck Surgery, Department of Surgery, Dalhousie University, Halifax, Nova Scotia, Canada
3. Department of Anesthesia, Pain Management and Perioperative Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
4. School of Nursing, Dalhousie University, Halifax, Nova Scotia, Canada