1. Department of Otolaryngology–Head and Neck Surgery, University of Pennsylvania, Philadelphia
2. Division of Otolaryngology–Head and Neck Surgery, University of Alabama, Birmingham
3. Department of Otolaryngology–Head and Neck Surgery, University of California, San Francisco
4. Department of Otolaryngology–Head and Neck Surgery, Cleveland Clinic, Cleveland, Ohio
5. Microvascular Reconstruction Program, Departments of Otolaryngology–Head and Neck Surgery and Oral Maxillofacial Surgery, Oregon Health and Sciences University, Portland