1. Division of Otolaryngology-Head and Neck Surgery, Department of Surgery; University of Vermont; Burlington VT
2. Vermont Cancer Center; University of Vermont; Burlington VT
3. Department of Dermatology; Stanford University; Stanford CA
4. Division of Otolaryngology-Head and Neck Surgery, Department of Surgery; University of North Carolina; Chapel Hill NC
5. Department of Pathology and Laboratory Medicine; University of North Carolina; Chapel Hill NC
6. Metabolon Inc.; Research Triangle Park NC