1. Department of Otolaryngology–Head and Neck Surgery, Massachusetts Eye and Ear Infirmary, Boston, Massachusetts
2. Department of Otology and Laryngology, Harvard Medical School, Boston, Massachusetts
3. Department of Otolaryngology and Communication Enhancement, Children's Hospital Boston, Boston, Massachusetts, and Divisions of Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
4. Otolaryngology–Head and Neck Surgery and Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
5. Pulmonary Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio