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