1. Division of Endocrinology and Diabetes, The Thyroid Center, Children's Hospital of Philadelphia , Philadelphia, PA 19104 , USA
2. Division of Nuclear Medicine, Department of Radiology, Children's Hospital of Philadelphia , Philadelphia, PA 19104 , USA
3. Section Oncologic Imaging, Department of Radiology, Children's Hospital of Philadelphia , Philadelphia, PA 19104 , USA
4. Division of Pediatric Otolaryngology, Children's Hospital of Philadelphia , Philadelphia, PA 19104 , USA
5. Department of Otorhinolaryngology: Head and Neck Surgery, University of Pennsylvania , Philadelphia, PA 19104 , USA
6. Department of Surgery, Children's Hospital of Philadelphia , Philadelphia, PA 19104 , USA
7. Division of Oncology, Children's Hospital of Philadelphia , Philadelphia, PA 19104 , USA