1. Department of Surgery, Head and Neck Service; Memorial Sloan Kettering Cancer Center; New York New York
2. Department of Surgery, Dental Service; Memorial Sloan Kettering Cancer Center; New York New York
3. Department of Pathology; Memorial Sloan Kettering Cancer Center; New York New York
4. Department of Oncology, Radiotherapy and Plastic Surgery; Sechenov University; Moscow Russia