1. Department of Head & NeckPlastic and Reconstructive Surgery ‐ Roswell Park Comprehensive Cancer Center Buffalo NY USA
2. Department of Otolaryngology ‐ Head & Neck Surgery, Division of Head & Neck OncologyUniversity Hospital Cleveland Medical Center and Case Western Reserve University Cleveland Ohio USA
3. Department of Otolaryngology ‐ Head & Neck Surgery, Division of Head & Neck OncologyUniversity of Toronto, Sunnybrook Health Sciences and the Odette Cancer Centre, Michael Garron Hospital Toronto Ontario Canada