1. Sidney Kimmel Medical College; Thomas Jefferson University; Philadelphia PA USA
2. Department of Otolaryngology-Head and Neck Surgery; Nationwide Children's Hospital and Wexner Medical Center at Ohio State University; Columbus OH USA
3. Division of Anatomic Pathology; Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia (CHOP); Philadelphia PA USA
4. Intertek Product Intelligence Group Inc.; Oakbrook IL USA
5. Division of Otolaryngology, Department of Surgery, Children's Hospital of Philadelphia (CHOP); Philadelphia PA USA
6. Department of Otorhinolaryngology-Head and Neck Surgery, Perelman School of Medicine at the University of Pennsylvania; Philadelphia PA USA