1. From the Division of Pediatric Otolaryngology-Head and Neck Surgery, BC Children's Hospital, Vancouver, British Columbia, Canada
2. the Division of Speech and Language Pathology, The Hospital for Sick Children, Toronto, Ontario, Canada,
3. the Division of Infectious Diseases, The Hospital for Sick Children, Toronto, Ontario, Canada
4. and the Department of Social Work, The Hospital for Sick Children, Toronto, Ontario, Canada.
5. the Department of Otolaryngology-Head and Neck Surgery, The Hospital for Sick Children, Toronto, Ontario, Canada