1. Division of Pediatric Otolaryngology–Head and Neck Surgery, Ann & Robert H. Lurie Children’s Hospital of Chicago, Chicago, Illinois
2. Department of Otolaryngology–Head and Neck Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois
3. Division of Pediatric Otolaryngology, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
4. Department of Otorhinolaryngology–Head and Neck Surgery, University of Pennsylvania, Philadelphia
5. Division of Thyroid and Parathyroid Endocrine Surgery, Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, Boston, Massachusetts
6. Division of Surgical Oncology, Department of Surgery, Massachusetts General Hospital, Boston, Massachusetts, Department of Otology and Laryngology, Harvard Medical School, Boston, Massachusetts