1. Department of Otolaryngology–Head and Neck Surgery, University of Washington, Seattle
2. Department of Dermatology, University of Minnesota Medical Center, Minneapolis
3. Department of Neurology, University of Minnesota Medical Center, Minneapolis
4. Department of Otolaryngology–Head and Neck Surgery, University of Minnesota Medical Center, Minneapolis
5. Department of Otolaryngology–Head and Neck Surgery, Hennepin County Medical Center, Minneapolis, Minnesota
6. Division of Facial Plastic & Reconstructive Surgery, Department of Otolaryngology–Head and Neck Surgery, University of Michigan, Ann Arbor