1. Department of Otorhinolaryngology-Head and Neck Surgery, University of Pennsylvania, Philadelphia
2. Division of Otolaryngology, Ann and Robert H. Lurie Hospital for Children, Chicago, Illinois
3. Department of Otolaryngology, Northwestern Feinberg School of Medicine, Chicago, Illinois
4. Department of Pediatrics, University of Pennsylvania, Philadelphia
5. Division of Endocrinology and Diabetes, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
6. Pediatric Thyroid Center, Division of Pediatric Oncology, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
7. Department of Pathology and Laboratory Medicine, Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania
8. Department of Surgery, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
9. Department of Surgery, University of Pennsylvania, Philadelphia
10. Division of Pediatric Otolaryngology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania