1 Schulich School of Medicine and Dentistry (Bhatt, St-Laurent, Graham), Department of Pediatrics (St-Laurent) and Department of Otolaryngology - Head and Neck Surgery (Graham), Western University, London, Ont.
2 Schulich School of Medicine and Dentistry (Bhatt, St-Laurent, Graham), Department of Pediatrics (St-Laurent) and Department of Otolaryngology - Head and Neck Surgery (Graham), Western University, London, Ont. elise.graham@lhsc.on.ca.