1. Sidney Kimmel Medical CollegeThomas Jefferson University Philadelphia Pennsylvania
2. Department of Otolaryngology–Head and Neck SurgeryNationwide Children's Hospital and Wexner Medical Center at Ohio State University Columbus Ohio
3. Division of Anatomic Pathology, Department of Pathology and Laboratory MedicineChildren's Hospital of Philadelphia Philadelphia Pennsylvania
4. Intertek Product Intelligence Group Inc. Arlington Heights Illinois
5. Division of Otolaryngology, Department of SurgeryChildren's Hospital of Philadelphia Philadelphia Pennsylvania
6. Department of Otorhinolaryngology–Head and Neck SurgeryPerelman School of Medicine at the University of Pennsylvania Philadelphia Pennsylvania