1. 1Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts.
2. 2Department of Otolaryngology—Head and Neck Surgery, Vanderbilt University Medical Center, Nashville, Tennessee.
3. 3Intuitive Surgical, Sunnyvale, California.
4. 4Department of Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts.
5. 5Department of Pathology, Stanford University School of Medicine, Stanford, California.
6. 6Department of Pathology and Laboratory Medicine, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin.
7. 7Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts.
8. 8Department of Otolaryngology–Head and Neck Surgery, Massachusetts Eye and Ear, Harvard Medical School, Boston, Massachusetts.