1. Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.
2. Department of Neuroradiology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.
3. Department of Endocrine Neoplasia and Hormonal Disorders, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.
4. Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.
5. Department of Investigational Cancer Therapeutics, and The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.
6. Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.