1. Department of Radiology, University of Texas Southwestern Medical Center, 5323 Harry Hines Blvd, Dallas, TX 75390-9140.
2. Department of Otolaryngology and Head and Neck Surgery, University of Texas Southwestern Medical Center, Dallas, TX.
3. Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX.
4. Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, TX.
5. Advanced Imaging Research Institute, University of Texas Southwestern Medical Center, Dallas, TX.
6. Department of Clinical Sciences, University of Texas Southwestern Medical Center, Dallas, TX.
7. Department of Biomedical Engineering, University of Texas Southwestern Medical Center, Dallas, TX.