1. Division of Endocrinology, Department of Pediatrics, Children's Hospital of Pittsburgh of UPMC, Pittsburgh, Pennsylvania.
2. Division of Pediatric Otolaryngology, Children's Hospital of Pittsburgh of UPMC, Pittsburgh, Pennsylvania.
3. Department of Otolaryngology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.
4. Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.
5. Department of Nuclear Medicine, University of Pittsburgh Cancer Centers, Pittsburgh, Pennsylvania.