1. Division of Endocrinology and Diabetes, The Thyroid Center; Philadelphia, Pennsylvania, USA.
2. Division of Pediatric Oncology; Philadelphia, Pennsylvania, USA.
3. Department of Surgery; Philadelphia, Pennsylvania, USA.
4. Division of Pediatric Otolaryngology; The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA.
5. Department of Otorhinolaryngology–Head and Neck Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.