1. Department of Otolaryngology, Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
2. Key Laboratory of Otolaryngology Head and Neck Surgery (Capital Medical University), Ministry of Education, Beijing 100730, China
3. Key Laboratory of Molecular Pathology of Head and Neck, Beijing 100730, China
4. Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
5. Department of Epidemiology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA