1. Department of Otolaryngology–Head and Neck Surgery, The Johns Hopkins University School of Medicine, Baltimore, Maryland
2. Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, Pennsylvania
3. Department of Otolaryngology–Head and Neck Surgery, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania
4. Department of Otolaryngology–Head and Neck Surgery, University Health Network, University of Toronto, Toronto, Ontario, Canada
5. Institute for Health Policy, Management, and Evaluation, University of Toronto, Toronto, Ontario, Canada