1. 1Department of Otolaryngology-Head and Neck Surgery, Stanford University School of Medicine. Stanford, California.
2. 2Department of Research, Intuitive Surgical Inc., Sunnyvale, California.
3. 3Department of Radiology, Stanford University School of Medicine. Stanford, California.
4. 4Department of Otolaryngology-Head and Neck Surgery, Vanderbilt University Medical Center. Nashville, Tennessee.
5. 5Department of Neurosurgery, Stanford University School of Medicine. Stanford, California.
6. 6Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center. Nashville, Tennessee.
7. 7Department of Medicine – Division of Medical Oncology, Stanford University School of Medicine. Stanford, California.
8. 8Department of Pathology, University of Louisville. Louisville, Kentucky.