1. Department of Head and Neck Surgery MD Anderson Cancer Center, The University of Texas MD Anderson Cancer Center Houston Texas USA
2. Department of Otolaryngology–Head and Neck and Maxillofacial Surgery Tel‐Aviv Sourasky Medical Center Tel Aviv Israel
3. Department of Otolaryngology, Head and Neck Surgery Walter Reed National Medical Center Bethesda Maryland USA
4. Department of Head and Neck Surgery Section of Oral Oncology and Maxillofacial Prosthodontics, The University of Texas MD Anderson Cancer Center Houston Texas USA